CN119949881A

CN119949881A - Quality control method for transient elasticity measurement and ultrasonic imaging equipment

Info

Publication number: CN119949881A
Application number: CN202311500131.1A
Authority: CN
Inventors: 李金洋; 李双双; 胡锦明
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2025-05-09

Abstract

The embodiment of the application discloses a quality control method for instantaneous elasticity measurement and ultrasonic imaging equipment. Before starting instantaneous elasticity measurement, determining a quality control result corresponding to each quality control index, acquiring a quality control score corresponding to each quality control result, calculating based on a plurality of quality control scores and weights corresponding to a plurality of quality control indexes to obtain a comprehensive quality control score, displaying the comprehensive quality control score and/or displaying a comprehensive quality control evaluation result obtained based on the comprehensive quality control score, wherein the comprehensive quality control score and/or the comprehensive quality control evaluation result are used for indicating whether instantaneous elasticity measurement of an interested region is suitable to be started or not. The user can directly confirm whether the instantaneous elasticity measurement can be started or not through the comprehensive quality control score or the comprehensive quality control evaluation result without confirming the quality control result of each quality control index one by one, so that the instantaneous elasticity measurement can be better assisted by a novice operator or an operator with insufficient experience, and the measurement efficiency and accuracy of the instantaneous elasticity measurement are improved.

Description

Quality control method for instantaneous elasticity measurement and ultrasonic imaging equipment

Technical Field

The embodiment of the application relates to the field of medical equipment, in particular to a quality control method for instantaneous elasticity measurement and ultrasonic imaging equipment.

Background

Liver fibrosis refers to the pathological process of abnormal hyperplasia of connective tissue in liver, which occurs in the healing process after the liver is damaged due to chronic viral hepatitis, alcoholic liver, fatty liver, autoimmune diseases and the like. If left free for long-term development, it eventually develops into irreversible cirrhosis, and early interventions can effectively reverse the process and reduce the probability of cirrhosis occurrence, accurate detection of liver fibrosis and long-term monitoring of disease progression are particularly important in the clinical diagnosis and treatment of liver fibrosis. The current ultrasonic elastography is gradually the first choice for detecting clinical hepatic fibrosis due to the characteristics of noninvasive, quick, low cost, high repeatability and the like. Among the various ultrasound elastography techniques, the transient elastography technique is the elastography technique with the earliest development, highest technique maturity and highest clinical acceptance, and has been widely used in hepatology, ultrasound and physical examination centers.

The measurement result of the instantaneous elasticity imaging is influenced by a plurality of quality control indexes, and the quality control results of the plurality of quality control indexes are qualified to obtain an accurate measurement result, but the operator needs to pay attention to whether the quality control result of each quality control is qualified one by one when performing instantaneous elasticity measurement, and the operation is quite complex. And the novice or inexperienced operators do not know the evaluation standard of each quality control, and can not judge whether the quality control result of one or more quality controls is qualified, so that the method is more unfriendly to the novice or inexperienced operators, and the efficiency of instantaneous elasticity measurement can not be improved.

Disclosure of Invention

The embodiment of the application provides a quality control method for instantaneous elasticity measurement and ultrasonic imaging equipment, which are used for better assisting a novice or inexperienced operator in operating the instantaneous elasticity measurement and improving the measurement efficiency and accuracy of the instantaneous elasticity measurement.

An embodiment of the present application provides a quality control method for instantaneous elasticity measurement, where the method includes:

Transmitting ultrasonic waves to a target part of a testee, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals;

obtaining an ultrasonic image according to the ultrasonic echo signal, and displaying the ultrasonic image;

determining a region of interest based on the ultrasound image;

before starting instantaneous elasticity measurement on the region of interest, acquiring a plurality of quality control indexes;

determining a quality control result corresponding to each quality control index to obtain a plurality of quality control results corresponding to the plurality of quality control indexes;

Obtaining quality control scores corresponding to the quality control results, and obtaining a plurality of quality control scores corresponding to the quality control results;

Calculating to obtain a comprehensive quality control score based on the quality control scores and weights corresponding to the quality control indexes;

Displaying the comprehensive quality control score and/or displaying a comprehensive quality control evaluation result obtained based on the comprehensive quality control score, wherein the comprehensive quality control score and/or the comprehensive quality control evaluation result is used for indicating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not;

The plurality of quality control indexes comprise at least two of whether a serum index of the testee meets a first preset condition, whether abdomen distension or ascites exists in the testee, whether the testee is pregnant, whether an active implant exists in the body of the testee, whether a body quality index of the testee meets a second preset condition, whether a large blood vessel or shadow exists in an ultrasonic image, whether a substantial sign of the target part in the ultrasonic image meets a third preset condition, whether a thickness of a fat layer in the ultrasonic image meets a fourth preset condition, whether a matching degree of the ultrasonic image and a historical ultrasonic image which is measured by the testee based on the instantaneous elasticity of the target part meets a fifth preset condition, whether a depth of the region of interest meets a sixth preset condition, whether the region of interest is traversed by a blood vessel, whether a distance between the region of interest and a gall bladder or kidney meets a seventh preset condition, whether a distance between the region of interest and an edge of the target part meets a third preset condition, whether a thickness of a fat layer in the ultrasonic image meets a fourth preset condition, whether a matching degree of the ultrasonic image and the historical ultrasonic image meets a ninth preset condition, whether a corresponding ultrasonic motion amplitude of the ultrasonic image meets a ninth preset condition, and whether a high-speed ultrasonic image is met.

The second aspect of the embodiment of the application provides a quality control method for instantaneous elasticity measurement, which comprises the following steps:

determining a region of interest based on the ultrasound image;

before starting instantaneous elasticity measurement of the region of interest, acquiring a historical ultrasonic image of the instantaneous elasticity measurement of the testee based on the target part;

determining a quality control evaluation result according to the matching degree of the ultrasonic image and the historical ultrasonic image;

and displaying the quality control evaluation result, wherein the quality control evaluation result is used for indicating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not.

A third aspect of an embodiment of the present application provides an ultrasound imaging apparatus, including:

an ultrasonic probe;

the transmitting circuit is used for exciting the ultrasonic probe to transmit ultrasonic waves to a target part of a detected person;

The receiving circuit is used for controlling the ultrasonic probe to receive the ultrasonic wave echo to obtain an ultrasonic echo signal;

And a processor for processing the ultrasonic echo signals to obtain an ultrasonic image of the target site, and executing the quality control method for instantaneous elasticity measurement according to the first aspect or the second aspect based on the ultrasonic image.

From the above technical solutions, the embodiment of the present application has the following advantages:

Before starting instantaneous elasticity measurement on the interested region of the ultrasonic image, determining a quality control result corresponding to each quality control index, acquiring a quality control score corresponding to each quality control result, obtaining a plurality of quality control scores corresponding to a plurality of quality control results, calculating based on the plurality of quality control scores and weights corresponding to the plurality of quality control indexes to obtain a comprehensive quality control score, displaying the comprehensive quality control score and/or displaying a comprehensive quality control evaluation result obtained based on the comprehensive quality control score, wherein the comprehensive quality control score and/or the comprehensive quality control evaluation result are used for indicating whether instantaneous elasticity measurement on the interested region is suitable to be started or not. The comprehensive quality control score and the comprehensive quality control evaluation result can reflect the overall influence degree of the quality control results of the plurality of quality control indexes on the instantaneous elasticity measurement. The user can directly confirm whether the instantaneous elasticity measurement can be started to the region of interest through the comprehensive quality control score or the comprehensive quality control evaluation result, and the quality control result of each quality control index is not required to be confirmed one by one, so that the instantaneous elasticity measurement can be better assisted by a novice or an operator with insufficient experience, and the measurement efficiency and accuracy of the instantaneous elasticity measurement are improved.

Drawings

FIG. 1 is a schematic block diagram of an ultrasound imaging apparatus in accordance with an embodiment of the present application;

FIG. 2 is a flow chart of a quality control method for instantaneous elastic measurement according to an embodiment of the present application;

FIG. 3 is an exemplary schematic diagram illustrating a display manner of the integrated quality control score and the integrated quality control evaluation result according to the embodiment of the present application;

FIG. 4 is another exemplary schematic diagram illustrating a display mode of the integrated quality control score and the integrated quality control evaluation result according to an embodiment of the present application;

FIG. 5 is another exemplary schematic diagram of a display mode of a comprehensive quality control evaluation result in a review scene according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a quality control index list according to an embodiment of the present application;

FIG. 7 is a flow chart of another embodiment of a quality control method for instantaneous elastic measurement;

Fig. 8 is another exemplary schematic diagram of a display manner of a quality control evaluation result in a review scene according to an embodiment of the present application.

Detailed Description

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1, an ultrasonic imaging apparatus according to an embodiment of the present application includes:

An ultrasound probe 110, transmit circuitry 112, receive circuitry 114, a processor 118, and a display 120. In addition, a transmit/receive select switch 122, a beam forming module 116, and a memory 124 may be included.

The ultrasonic probe 110 may be any probe for ultrasonic detection, such as a 2D ultrasonic probe, a 3D ultrasonic probe, and the like. The sound head portion of the ultrasonic probe 110 may be an array formed by a plurality of array elements, for example, a plurality of array elements are arranged in a row to form a linear array, or are arranged in a two-dimensional matrix to form an area array, and a plurality of array elements may also form a convex array. The array elements are used for transmitting ultrasonic beams according to the excitation electric signals or converting received ultrasonic echoes into electric signals. Each array element can be used for realizing the mutual conversion of an electric pulse signal and an ultrasonic wave beam, thereby realizing the transmission of ultrasonic waves to target tissues of a human body, and can also be used for receiving the echo waves of the ultrasonic waves reflected by the tissues.

The transmitting circuit 112 is configured to generate a transmitting sequence according to control of the transmitting control module of the processor 118, where the transmitting sequence is configured to control a part or all of the plurality of array elements to transmit ultrasonic waves to the biological tissue.

The receiving circuit 114 is configured to receive the electrical signals of the ultrasonic echo from the ultrasonic probe 110, obtain ultrasonic echo signals, and send the ultrasonic echo signals to the beam forming module 116.

The beam synthesis module 116 is configured to perform corresponding delay, weighted summation, beam synthesis, and other processing on the signal output by the receiving circuit 114. Because the distances from the ultrasonic receiving points to the receiving array elements in the tested tissue are different, the channel data of the same receiving point output by different receiving array elements have delay differences, delay processing is needed, phases are aligned, and the weighted summation is carried out on the different channel data of the same receiving point, so that the data after beam synthesis is obtained.

The processor 118 is connected with the beam forming module 116, and mainly performs detection, signal enhancement, data conversion, logarithmic compression and other processes on the beam formed data to form an ultrasonic image. The ultrasound images obtained by the processor 118 may be displayed on the display 120 or may be stored in the memory 124.

Alternatively, the Processor 118 may be at least one of an Application SPECIFIC INTEGRATED Circuit (ASIC), a digital signal Processor (DIGITAL SIGNAL Processor, DSP), a digital signal processing device (DIGITAL SIGNAL Processing Device, DSPD), a programmable logic device (Programmable Logic Device, PLD), a field programmable gate array (Field Programmable GATEARRAY, FPGA), a central processing unit (Central Processing Unit, CPU), a controller, a microcontroller, or a microprocessor such that the Processor 118 may control other components in the present ultrasound imaging apparatus 100 to perform the ultrasound imaging steps in various embodiments of the present specification. The processor 118 may be a component or may be a generic term for control devices and processing devices in an ultrasound imaging apparatus that are capable of controlling other components of the ultrasound imaging apparatus to perform the functions of the various embodiments.

The display 120 is connected to the processor 118, and the display 120 may be a touch display screen or a liquid crystal display screen, or the display 120 may be a stand-alone display independent of the liquid crystal display or the television set, or the display 120 may be a display screen of an electronic device, such as a smart phone or a tablet computer, or the like. Wherein the number of displays 120 may be one or more.

In addition to the above structure, the ultrasonic imaging apparatus 100 may further include a man-machine interaction device. Specifically, the man-machine interaction device may be the display 120, for example, the functions of the man-machine interaction device are all integrated into the display 120, and the display 120 may also provide a graphical interface for man-machine interaction for a user when displaying an ultrasound image. One or more controlled objects are arranged on the graphical interface, and the user is provided with a man-machine interaction device to input operation instructions to control the controlled objects, so that corresponding control operation is executed. For example, icons are displayed on the graphical interface, and the icons may be manipulated using a human-machine interaction device to perform specific functions, such as changing the position of an image and/or magnifying a specific area.

The human interaction device may also be other human interaction devices besides the display 120. The man-machine interaction device may comprise an input device for detecting input information of a user, for example, instructions for editing and identifying an ultrasonic image, or may further comprise other instruction types. The input devices may include one or more of a keyboard, a scroll wheel, a trackball, and a mobile input device (e.g., a mobile device with a touch display, a cell phone, etc.), a multi-function knob, etc. The human-machine interaction means may also comprise an output device such as a printer.

The ultrasound imaging device 100 described above may also include a memory 124, the memory 124 for storing instructions for process execution, for storing received ultrasound echo signals, for storing ultrasound image data, and so forth. The Memory 124 may be a volatile Memory (RAM) such as random access Memory (RandomAccess Memory), or a non-volatile Memory (non-volatile Memory) such as Read Only Memory (ROM), flash Memory (flash Memory), hard disk (HARD DISK DRIVE, HDD) or Solid state disk (Solid-state-STATE DRIVE, SSD), or a combination of the above, and provides instructions and data to the processor.

It should be understood that the components included in the ultrasound imaging apparatus 100 shown in fig. 1 are illustrative only and may include more or fewer components, and the present application is not limited in this regard.

The success rate and accuracy of instantaneous elastography are extremely dependent on the experience of the operator, and especially how to accurately meet the multiple quality controls in the detection, which has high requirements for the operator. However, the quality control in the instantaneous elasticity measurement includes aspects of measurement position selection, ROI selection, probe pre-compression, respiratory stability and the like, and meanwhile, part of quality control has no definite quantization method and judgment standard, and part of quality control such as quality control of an ultrasonic image cannot define the quantization method and judgment standard, so that the operation is complicated, the time consumption is long, errors are easy to occur, and the failure rate is increased and the repeatability is reduced. The pre-pressing of the probe is that the operator holds the ultrasonic probe to apply pressure to the target part.

Secondly, for patients with difficult examination caused by excessively thin and weak, excessively obese, narrow intercostal space, heavier illness state and the like, the influence on the measured value needs to be determined according to the actual condition and the quality control condition, and a relatively more accurate result needs to be obtained by choosing among a plurality of quality control points, so that the requirement of instantaneous elasticity measurement on an operator is further improved, key quality control points are easily omitted by a new hand due to difficult choosing, the accurate quality control result cannot be obtained, meanwhile, the training difficulty is increased, and the popularization of the instantaneous elasticity measurement is not facilitated. These two points are also the main contributors to instantaneous elasticity measurements in current clinics.

In order to solve the above technical problems, a quality control method of instantaneous elasticity measurement performed by the ultrasonic imaging apparatus will be described in further detail based on the specific structural composition of the ultrasonic imaging apparatus and the functions of each structure. The quality control of the instantaneous elasticity measurement means the control of the execution quality of the instantaneous elasticity measurement, which means the control of the accuracy of the measured value of the instantaneous elasticity measurement, so as to improve the accuracy of the measured value and the execution quality of the instantaneous elasticity measurement. As shown in fig. 2, an embodiment of a quality control method for instantaneous elasticity measurement according to an embodiment of the present application includes:

201. Transmitting ultrasonic waves to a target part of a testee, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals;

The target site may be a liver of a subject, and the user may perform ultrasonic scanning on the target site of the subject using the ultrasonic probe, and the ultrasonic imaging apparatus transmits ultrasonic waves to the target site of the subject based on the ultrasonic probe, receives echoes of the ultrasonic waves, and obtains ultrasonic echo signals based on the echoes of the ultrasonic waves. The quality control method and the ultrasonic imaging device for instantaneous elasticity measurement can be applied to human bodies, various animals, namely, the testee can be a human body, and various animals.

202. Obtaining an ultrasonic image according to the ultrasonic echo signal, and displaying the ultrasonic image;

203. determining a region of interest based on the ultrasound image;

An ultrasound imaging device generates an ultrasound image from the ultrasound echo signals and displays the ultrasound image on a display. Furthermore, for making transient elasticity measurements, the ultrasound imaging device may also determine a region of interest in the ultrasound image. The ultrasound image according to the present application may be a one-dimensional, two-dimensional or three-dimensional ultrasound image, such as an M-mode ultrasound image, an a-mode ultrasound image, a B-mode ultrasound image, etc., without limitation. The determination of the region of interest may be automatically determined by the ultrasonic imaging apparatus, or may be a setting operation of the region of interest input by the user, the ultrasonic imaging apparatus determines the region of interest according to the setting operation of the user, and the manner of determining the region of interest by the ultrasonic imaging apparatus is not limited in this embodiment. The region of interest according to the present application may be a closed region surrounded by a square, a circle or an irregular pattern, or may be a non-closed region/position defined by lines, and the specific shape of the region of interest is not limited herein.

204. Before starting instantaneous elasticity measurement on the region of interest, acquiring a plurality of quality control indexes;

205. Determining a quality control result corresponding to each quality control index to obtain a plurality of quality control results corresponding to the plurality of quality control indexes;

The quality control index refers to an index that affects the measurement value of the instantaneous elasticity measurement, and this effect includes affecting the accuracy and reliability (improvement or reduction) of the measurement value of the instantaneous elasticity measurement, and may also include affecting other aspects of the measurement value of the instantaneous elasticity measurement, for example, since the instantaneous elasticity measurement may affect fetal development, if the subject is a sensitive crowd such as pregnant woman, the instantaneous elasticity measurement is not recommended, and the measurement value of the instantaneous elasticity measurement is not obtained at this time.

Therefore, before the instantaneous elasticity measurement is started, a plurality of quality control indexes can be obtained, and a quality control result corresponding to each quality control index is determined, so that a plurality of quality control results corresponding to the plurality of quality control indexes are obtained. The influence of the quality control result of each quality control index on the measured value of the instantaneous elasticity measurement can be that the accuracy of the measured value of the instantaneous elasticity measurement can be improved, or the accuracy of the measured value of the instantaneous elasticity measurement can be reduced, or the influence on other aspects of the measured value of the instantaneous elasticity measurement can be improved.

The plurality of quality control indexes comprise at least two of whether the serum index of the testee meets a first preset condition, whether abdominal distension or ascites exists in the testee, whether the testee is pregnant woman, whether an active implant exists in the body of the testee, whether the body quality index of the testee meets a second preset condition, whether a large blood vessel or shadow exists in an ultrasonic image, whether a substantial sign (such as a liver substantial sign) of a target part in the ultrasonic image meets a third preset condition, whether the thickness of a fat layer in the ultrasonic image meets a fourth preset condition, whether the matching degree of the ultrasonic image and a historical ultrasonic image of a previous testee which carries out instantaneous elasticity measurement based on the target part meets a fifth preset condition, whether the depth of an area of interest meets a sixth preset condition, whether the area of interest is intersected by a blood vessel, whether the distance between the area of interest and a gall bladder or kidney meets a seventh preset condition, whether the distance between the area of interest and the edge of the target part (such as the distance between the area of the liver and the edge) meets an eighth preset condition, whether the movement change amplitude corresponding to the ultrasonic image meets a fourth preset condition, whether the motion change amplitude of the ultrasonic image meets the fifth preset condition and whether a ninth preset condition meets a tenth preset condition is met, and a tenth preset condition is applied to the user.

For example, if the region of interest is traversed by a blood vessel, the quality control result of the quality control index can improve the accuracy of the measured value of the instantaneous elasticity measurement when the region of interest is not traversed by the blood vessel, and when the quality control result of the quality control index is traversed by the blood vessel, the quality control result of the quality control index can reduce the accuracy of the measured value of the instantaneous elasticity measurement because the blood vessel can influence the propagation of shear waves in the region of interest and further influence the instantaneous elasticity measurement.

For example, if the quality control result of the quality control index is that the active implant is not present in the body of the subject, the quality control result of the quality control index can improve the accuracy of the measured value of the instantaneous elasticity measurement, and if the quality control result of the quality control index is that the active implant is present in the body of the subject, the quality control result of the quality control index can reduce the accuracy of the measured value of the instantaneous elasticity measurement.

206. Obtaining quality control scores corresponding to the quality control results, and obtaining a plurality of quality control scores corresponding to the quality control results;

the quality control result of each quality control index can be endowed with a corresponding quality control score. For example, the ultrasonic imaging device obtains the serum index of the testee to meet the first preset condition, obtains the quality control results of a plurality of quality control indexes such as that the testee does not have abdominal distension or ascites, and the testee is not pregnant woman, and the like, and the quality control results can be assigned according to preset rules to obtain the quality control score corresponding to each quality control result.

207. Calculating to obtain a comprehensive quality control score based on the quality control scores and weights corresponding to the quality control indexes;

The weight corresponding to the quality control index characterizes the influence degree of the quality control index on the measured value of the instantaneous elasticity measurement, for example, the larger the weight corresponding to the quality control index is, the larger the influence degree of the weight corresponding to the quality control index on the measured value of the instantaneous elasticity measurement is, and otherwise, the smaller the influence degree of the weight corresponding to the quality control index on the measured value of the instantaneous elasticity measurement is. Therefore, the comprehensive quality control score can be calculated based on a plurality of quality control scores corresponding to a plurality of quality control results of a plurality of quality control indexes and weights corresponding to a plurality of quality control indexes. Because the quality control result can affect the measured value of the instantaneous elasticity measurement (such as affecting the accuracy of the measured value), and the weight represents the extent of the influence, the comprehensive quality control score can reflect the comprehensive influence of a plurality of quality control results of a plurality of quality control indexes on the measured value of the instantaneous elasticity measurement.

208. Displaying the comprehensive quality control score and/or displaying a comprehensive quality control evaluation result obtained based on the comprehensive quality control score, wherein the comprehensive quality control score and/or the comprehensive quality control evaluation result is used for indicating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not;

The ultrasonic imaging device displays the comprehensive quality control score and/or displays a comprehensive quality control evaluation result obtained based on the comprehensive quality control score, and because the comprehensive quality control score is a comprehensive result obtained by calculating a plurality of quality control results based on a plurality of quality control indexes, the comprehensive quality control score can reflect the comprehensive influence of the plurality of quality control results of the plurality of quality control indexes on the instantaneous elasticity measurement, and the comprehensive influence comprises various influences such as improving the accuracy of the measured value of the instantaneous elasticity measurement or reducing the accuracy of the measured value of the instantaneous elasticity measurement, namely, the comprehensive quality control score can indicate whether the instantaneous elasticity measurement is suitable for starting the instantaneous elasticity measurement of the region of interest.

The comprehensive quality control evaluation result is information for evaluating quality control quality of the instantaneous elasticity measurement reflected by the comprehensive quality control score, and similarly, the comprehensive quality control evaluation result can also represent comprehensive influence of a plurality of quality control results of a plurality of quality control indexes on the instantaneous elasticity measurement, and can also be used for indicating whether the instantaneous elasticity measurement is suitable for starting the instantaneous elasticity measurement on the region of interest.

The ultrasonic imaging device may display the integrated quality control score and the integrated quality control evaluation result at the same time, or may display only the integrated quality control score, or may display only the integrated quality control evaluation result, which is not limited herein.

Therefore, the comprehensive quality control score and the comprehensive quality control evaluation result can reflect the comprehensive influence of a plurality of quality control results of a plurality of quality control indexes on the instantaneous elasticity measurement, namely, the comprehensive quality control score and the comprehensive quality control evaluation result indicate whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not. The user can directly confirm whether the instantaneous elasticity measurement can be started to the region of interest through the comprehensive quality control score or the comprehensive quality control evaluation result, and whether the quality control result of each quality control index is qualified or not is not required to be confirmed one by one, so that the instantaneous elasticity measurement can be better assisted by a novice operator or an operator with insufficient experience, and the measurement efficiency and accuracy of the instantaneous elasticity measurement are improved.

Based on the embodiment shown in fig. 2, in a preferred implementation manner, when the integrated quality control evaluation result is displayed, if the integrated quality control score indicates that the instantaneous elasticity measurement is suitable for starting the region of interest, the integrated quality control score and/or the integrated quality control evaluation result is displayed in a first display style, if the integrated quality control score indicates that the quality control result with the quality control risk is modified to be suitable for starting the instantaneous elasticity measurement on the region of interest, the integrated quality control score and/or the integrated quality control evaluation result is displayed in a second display style, and if the integrated quality control score indicates that the instantaneous elasticity measurement is unsuitable for starting the region of interest, the integrated quality control score and/or the integrated quality control evaluation result is displayed in a third display style, wherein the first display style, the second display style and the third display style are different.

For example, the integrated quality control score and/or the integrated quality control evaluation result may be displayed green if the integrated quality control score indicates that instantaneous elasticity measurement of the region of interest is suitable to be initiated, yellow if the integrated quality control score indicates that quality control result at risk of quality control is modified to be suitable to be initiated, and red if the integrated quality control score indicates that instantaneous elasticity measurement of the region of interest is unsuitable to be initiated. The user can know whether it is appropriate to start the instantaneous elasticity measurement by displaying the distinction of the patterns and combining with a text prompt, and whether it is appropriate to start the instantaneous elasticity measurement by correction when it is inappropriate.

The differences among the first display style, the second display style and the third display style may be differences between display frames, differences between colors, differences between patterns and patterns, or differences between other visual effects, which are not limited herein.

The quality control risk of the quality control result of the quality control index means that the quality control result of the quality control index can reduce the accuracy of the measured value of the instantaneous elasticity measurement, for example, the region of interest is traversed by a blood vessel and the accuracy of the measured value of the instantaneous elasticity measurement can be reduced, or the quality control result can not perform the instantaneous elasticity measurement, for example, the instantaneous elasticity measurement is not recommended when the testee is a pregnant woman.

The quality control result with quality control risk is corrected to be suitable for starting instantaneous elasticity measurement on the region of interest, which means that the quality control result with quality control risk can be corrected to ensure that the quality control risk does not exist, for example, a large blood vessel or shadow exists in an ultrasonic image, the condition can ensure that the ultrasonic image avoids the large blood vessel or shadow by adjusting the scanning position or the scanning direction, for example, the depth of the region of interest does not meet a sixth preset condition (such as too deep or too shallow), and at the moment, the depth of the region of interest can be adjusted to meet the sixth preset condition.

The fact that the method is not suitable for starting the instantaneous elasticity measurement of the region of interest means that the quality control result with quality control risk has a great influence on the instantaneous elasticity measurement, and the quality control risk is difficult to reduce through correction. For example, the transient elasticity measurement may affect fetal development of the pregnant woman, so that the pregnant woman does not recommend the transient elasticity measurement, a person having an active implant in the body, whose implant may affect the accuracy of the transient elasticity measurement, or the serum index of the subject may not meet the first preset condition (e.g., be too high or too low), may seriously affect the accuracy of the transient elasticity measurement, etc., and these quality control results are difficult or even impossible to adjust in a short time, and have a great influence on the transient elasticity measurement, so that when such quality control results are at risk, the initiation of the transient elasticity measurement is not recommended.

Based on the example shown in fig. 2, in another preferred embodiment thereof, the integrated quality control assessment result may include a start-up recommendation and/or evaluation information for quality control of the instantaneous elasticity measurement. For example, if the composite quality control score indicates that it is appropriate to initiate a transient elasticity measurement on the region of interest, a start suggestion that may initiate a transient elasticity measurement on the region of interest is displayed, and/or a first acceptable level of prompt information characterizing a quality control of the transient elasticity measurement is displayed, if the composite quality control score indicates that a quality control result at risk is modified to be appropriate to initiate a transient elasticity measurement on the region of interest, a start suggestion that modifies a quality control result at risk to initiate a transient elasticity measurement on the region of interest, and/or a second acceptable level of prompt information characterizing a quality control of the transient elasticity measurement is displayed, and/or a suggestion that may not initiate a transient elasticity measurement is displayed, and/or a third acceptable level of prompt information characterizing a quality control of the transient elasticity measurement is displayed, if the composite quality control score indicates that it is not appropriate to initiate a transient elasticity measurement on the region of interest.

Wherein the first acceptable level is higher than the second acceptable level, and the second acceptable level is higher than the third acceptable level. The higher the acceptable level of quality control of the instantaneous elasticity measurement, the more suitable it is to initiate the instantaneous elasticity measurement of the region of interest, and the less suitable it is to initiate the instantaneous elasticity measurement of the region of interest.

As shown in FIG. 3, the uppermost graph corresponds to a case suitable for starting instantaneous elasticity measurement on a region of interest, at this time, the comprehensive quality control score can be displayed in green, and a suggestion of "starting measurement" is displayed, which indicates that instantaneous elasticity measurement on the region of interest can be started, and prompt information indicating that the quality control of instantaneous elasticity measurement is higher in acceptable level can also be displayed, such as a word indicating that "better quality control" or "better quality control" and the like is displayed, the middle graph corresponds to a case suitable for starting instantaneous elasticity measurement on the region of interest when quality control results with quality control risks are corrected to be suitable for starting instantaneous elasticity measurement on the region of interest, at this time, the comprehensive quality control score can be displayed in yellow, and a suggestion of "best corrected and restarted" is displayed, which indicates that the operator needs to correct the quality control results with quality control risks to be suitable for starting instantaneous elasticity measurement on the region of interest, and prompt information indicating that the quality control of instantaneous elasticity measurement is acceptable in general can also be displayed, such as a word indicating that "better quality control can be controlled or" quality control generally "and the like is displayed, and the lowest graph corresponds to a word not suitable for starting instantaneous elasticity measurement on the region of interest, at this time, and the condition that the quality control measurement is better quality control can be displayed, and the quality control measurement is better in red, and the quality control measurement is better in controllable, and the quality control is better in quality control, and the like.

The comprehensive quality control evaluation result can be displayed in a graphical form besides the text form, such as a start suggestion or a prompt message indicating an acceptable level of quality control of the instantaneous elasticity measurement. Specifically, the ultrasonic imaging apparatus displays the first region in the preset pattern in a fourth display style, and displays other regions in the preset pattern than the first region in a display style different from the fourth display style. The duty ratio and/or the color of the first region in the preset graph are determined according to the comprehensive quality control score, and the duty ratio and/or the color are used for indicating the suitability degree of starting instantaneous elasticity measurement on the region of interest.

The duty cycle may be a percentage of the composite quality control score to a predetermined maximum score (e.g., a predetermined maximum score such as 100). As shown in fig. 4, in the picture corresponding to example 1, the integrated quality control score is represented by a numerical value. In the picture corresponding to example 2, the quality control ring is used to represent the comprehensive quality control evaluation result, wherein the preset highest score is assumed to be 100 points, the comprehensive quality control score is 80 points, the percentage of the comprehensive quality control score to the preset highest score is 80%, the quality control ring is five equal parts of the annular graph, the area with the 80% ratio in the quality control ring is 4 parts of 5 parts of the annular graph, the 4 parts of the area can be filled with color, and the remaining 1 part of the area can be not filled with color, so as to represent the difference, and the user can know the suitability degree of the starting instantaneous elasticity measurement represented by the comprehensive quality control score through the display style of the quality control ring.

Similarly, in the picture corresponding to example 3, the quality control star is used to represent the comprehensive quality control score, the quality control star is composed of 5 identical star-shaped patterns, the area with the 80% of the quality control star is 4 of the 5 star-shaped patterns, the 4 star-shaped patterns can be filled with colors, the remaining 1 star-shaped pattern can not be filled with colors, so as to represent distinction, and a user can also know the suitability degree of starting the instantaneous elasticity measurement represented by the comprehensive quality control score through the display style of the quality control star.

Of course, other graphics may be used in addition to the graphics such as the quality control loop, the quality control star, etc., and the overall quality control score is not limited herein. Different areas in the preset graph are displayed in different display modes, besides the partial area filling colors and the partial area not filling colors, the different areas can be differently displayed in other modes, for example, frames in different areas are displayed in different thickness degrees or different linear frame lines, and the different display modes of the different areas in the preset graph are not limited.

The color of the first region in the preset graph is determined according to the comprehensive quality control score, and the color is used for indicating the suitability degree of starting the instantaneous elasticity measurement of the region of interest, for example, the first region is filled with green when the comprehensive quality control score indicates that the instantaneous elasticity measurement of the region of interest is suitable for starting, the first region is filled with yellow when the comprehensive quality control score indicates that the quality control result with quality control risk is corrected to be suitable for starting the instantaneous elasticity measurement of the region of interest, and the first region is filled with red when the comprehensive quality control score indicates that the instantaneous elasticity measurement of the region of interest is unsuitable for starting. Thus, the user can determine whether it is appropriate to initiate the transient elasticity measurement by the degree of suitability of the color characterization of the first region.

The specific numerical value of the integrated quality control score may be displayed only, or the preset pattern and the first area may be displayed only according to the integrated quality control score, or the specific numerical value of the integrated quality control score and the preset pattern and the first area may be displayed simultaneously, which is not limited herein.

Based on the embodiment shown in fig. 2, in another preferred embodiment, when the integrated quality control score indicates that the instantaneous elasticity measurement on the region of interest is not suitable for starting, and/or when the integrated quality control score indicates that the quality control result with the quality control risk is modified to be suitable for starting the instantaneous elasticity measurement on the region of interest, the ultrasonic imaging apparatus may further determine a quality control result with the quality control risk in a plurality of quality control results corresponding to the plurality of quality control indexes, and display the quality control result with the quality control risk.

The quality control result with the quality control risk may be, for example, that the serum index of the subject does not satisfy the first preset condition, that the subject has abdominal distension or ascites, that the subject is a pregnant woman, that the subject has an active implant in the body, that the body mass index of the subject does not satisfy the second preset condition, that the large blood vessel or shadow is present in the ultrasound image, that the substantial sign of the target site in the ultrasound image does not satisfy the third preset condition, that the thickness of the fat layer in the ultrasound image does not satisfy the fourth preset condition, that the matching degree of the ultrasound image with the historical ultrasound image of the previous subject performing instantaneous elasticity measurement based on the target site does not satisfy the fifth preset condition, that the depth of the region of interest does not satisfy the sixth preset condition, that the region of interest is traversed by the blood vessel, that the distance of the region of interest from the gall bladder or kidney does not satisfy the seventh preset condition, that the distance of the region of interest from the edge of the target site does not satisfy the eighth preset condition, that the motion change amplitude corresponding to the ultrasound image does not satisfy the ninth preset condition, and that the pressure applied by the user holding the ultrasound probe satisfies the tenth preset condition to the target site.

For example, if the quality control result with quality control risk is that the region of interest (ROI, region of interest) is too deep, the ROI is indicated to be too deep as shown in the middle graph of fig. 3, and if the quality control result with quality control risk is that the serum glutamic pyruvic transaminase ALT of the tested person is too high, the ALT is indicated to be too high as shown in the bottom graph of fig. 3, at this time, instantaneous elasticity measurement is not recommended, and replacement of other examination items is recommended.

By displaying the quality control results with quality control risks, the user can know which quality control results are unsuitable for starting instantaneous elasticity measurement, so that the user can conveniently take corresponding adjustment measures to adjust quality control objects in the quality control results with quality control risks (such as adjusting the position of the region of interest when the region of interest is traversed by a blood vessel), and the quality control risks of the quality control results are reduced.

When the quality control result with the quality control risk is determined, besides the quality control result with the quality control risk, a correction suggestion can be displayed according to the quality control result with the quality control risk, and the correction suggestion is used for prompting a user to input corresponding correction operation so as to reduce the quality control risk of the quality control result. For example, if the quality control result with quality control risk is that the region of interest is too deep, while prompting the ROI to be too deep, a correction suggestion may be displayed to prompt the user to adjust the depth of the ROI, as shown in the middle diagram of fig. 3, and prompt the user to adjust the ROI upward so that the depth of the ROI meets the sixth preset condition, thereby reducing the quality control risk with quality control result.

Of course, for an operator with a certain operational experience, after knowing the quality control result with quality control risk, the operator knows how to adjust and correct, and then it is also unnecessary to display correction advice. Alternatively, whether to display the correction advice may be set by the user at his own discretion, and the present embodiment is not limited to the case where the correction advice is necessarily displayed.

The instantaneous elasticity measurement sometimes has a scene of patient review, and the patient can take the result of the instantaneous elasticity measurement before the patient review so as to facilitate the doctor to compare the current result with the previous result, and at this time, the instantaneous elasticity measurement can be preferably performed at the same position of the previous result, so that the comparison of measured values is more accurate and meaningful. Thus, the ultrasound imaging device may display a historical ultrasound image, which may be an ultrasound image based on which the subject previously made the instantaneous elasticity measurement, and a matching degree of the current ultrasound image and the historical ultrasound image, for example, may be an ultrasound image based on which the subject previously made the instantaneous elasticity measurement.

Therefore, when there is a quality control result that the matching degree does not meet the fifth preset condition and there is a quality control risk, the ultrasonic imaging device may display alarm information and/or display correction advice for adjusting the scanning position of the ultrasonic probe. The alarm information is used for prompting that the matching degree is unqualified and/or prompting that the current ultrasonic image is unqualified. The current ultrasonic image is unqualified, which can be that the scanning position of the current ultrasonic image does not correspond to the scanning position of the historical ultrasonic image, or that the matching degree of the current ultrasonic image and the historical ultrasonic image is lower or is not matched. The correction advice is used for prompting a user to adjust the scanned position so as to improve the matching degree of the current ultrasonic image and the historical ultrasonic image.

The matching degree may be a cross-correlation ratio between the current ultrasound image and the historical ultrasound image, or a ratio between a superposition area between the two images and an area of the historical ultrasound image, and the representation mode of the matching degree is not limited in this embodiment.

For example, as shown in fig. 5, an ultrasound sectional image in which an ultrasound image is two-dimensional is illustrated. In the review scene, the ultrasonic imaging device can display an ultrasonic section image obtained by current ultrasonic scanning, can also display a historical section image according to which a testee previously makes instantaneous elasticity measurement, can calculate the matching degree between the current ultrasonic section image and the historical section image, and if the matching degree does not meet the fifth preset condition, can display alarm information, such as a prompt word with lower matching degree with the review section, can display a specific numerical value of the matching degree and can display correction advice, such as a advice word with 'adjustment section', and can acquire the current quality control result with quality control risk and determine how to correct and adjust the quality control result with the quality control risk.

The method of calculating the comprehensive quality control score may be various, and one method may be to assign a first quality control score to each quality control result when the quality control result indicates that there is a quality control risk, and assign a second quality control score to the quality control result when the quality control result indicates that there is no quality control risk.

Each quality control index has a corresponding weight. The weights corresponding to different quality control indexes can be the same or different, and can be determined by a user according to the influence degree of the quality control indexes on the instantaneous elastic measurement result, if the influence degree is large, the larger the weight is, and the smaller the influence degree is, the smaller the weight is. The quality control result without quality control risk does not cause the accuracy of the measured value of the instantaneous elasticity measurement to be reduced, or the accuracy of the measured value of the instantaneous elasticity measurement can be improved, if the depth of the region of interest meets the sixth preset condition, or the region of interest is not traversed by the blood vessel, both are quality control results without quality control risk.

The first quality control scores assigned by different quality control results with quality control risks can be the same or different. Likewise, the second quality control scores assigned by different quality control results without quality control risk may be the same or different.

The ultrasonic imaging device can calculate and obtain the comprehensive quality control score according to a first quality control score of a quality control result with quality control risk in the quality control results, a second quality control score of a quality control result without quality control risk in the quality control results and weights respectively corresponding to the quality control indexes.

Therefore, one calculation method may be to calculate the integrated quality control score according to the preset score and the first quality control score of the quality control result (hereinafter referred to as "quality control risk item") with quality control risk among the plurality of quality control results, for example, one calculation formula of the integrated quality control score may be expressed as follows:

composite quality score = preset score- (first quality score of quality risk item 1+ first quality score of quality risk item 2 +..+ first quality score of quality risk item n).

Of course, the present invention is not limited to the above-described formula, and any formula may be used as long as it shows that the overall quality control score decreases with the increase of the quality control risk items on the basis of the preset score, and for example, each quality control risk item may be multiplied by a corresponding weight on the basis of the above-described formula.

Another calculation method may be to calculate a comprehensive quality control score according to a second quality control score of a quality control result (hereinafter referred to as "quality control qualified item") without quality control risk among the plurality of quality control results, for example, a calculation formula of the comprehensive quality control score may be expressed as follows:

Composite quality score = second quality score of quality qualified item 1 + second quality score of quality qualified item 2 + &..+ second quality score of quality qualified item n.

Of course, the present invention is not limited to the above-described formula, and any formula may be used as long as it shows that the overall quality control score increases with the increase of quality control qualified items, and for example, each quality control qualified item may be multiplied by a corresponding weight based on the above-described formula.

Another calculation method may be to calculate a comprehensive quality control score according to a preset score, a first quality control score and a weight of a quality control risk item in a plurality of quality control results, and a second quality control score and a weight of a quality control qualified item in a plurality of quality control results, where for example, a calculation formula of the comprehensive quality control score may be expressed as follows:

Composite quality score = preset score- (first quality score x weight of quality risk item 1 + first quality score x weight of quality risk item 2 +,.+ first quality score x weight of quality risk item n) + (second quality score x weight of quality pass item 1 + second quality score x weight of quality pass item 2 +,.+ second quality score x weight of quality pass item n).

Of course, the above formula is not limited, and any formula may be used as long as it shows that the overall quality control score decreases with the increase of the quality control risk items on the basis of the preset score.

For example, if the quality control risk item may be assigned a value of 1 and the quality control qualified item may be assigned a value of 0, another calculation formula for the composite quality control score may be further expressed as follows:

Composite quality score = preset score- (first quality score x weight of quality risk item 1 + first quality score x weight of quality risk item 2 +,.+ first quality score x weight of quality risk item n + second quality score x weight of quality pass item 1 + second quality score x weight of quality pass item 2 +,.+ second quality score x weight of quality pass item n).

The calculation method of the integrated quality control score in this embodiment is not limited, as long as it indicates that the integrated quality control score decreases with increasing quality control risk items and/or increases with increasing quality control qualified items. In this case, the higher the overall quality control score, the higher the suitability for starting the instantaneous elasticity measurement, and conversely, the lower the suitability.

Of course, other realizations are also possible, in which the overall quality control score represents a risk factor, and the higher the overall quality control score, the lower the suitability for starting the instantaneous elasticity measurement, and vice versa. In this case, the overall quality control score may be calculated in a manner that indicates that the overall quality control score increases with an increase in quality control results that are at risk for quality control and/or decreases with an increase in quality control qualified items.

In this embodiment, the region of interest in the ultrasound image may be set by the user, and the ultrasound imaging device may determine whether the region of interest set by the user is suitable for instantaneous elasticity measurements. Therefore, if the depth of the region of interest meets the sixth preset condition, the region of interest is not traversed by the blood vessel, the distance between the region of interest and the gallbladder or kidney meets the seventh preset condition, and the distance between the region of interest and the edge of the target portion meets the eighth preset condition, the region of interest is suitable for instantaneous elasticity measurement, the region of interest may be displayed in the ultrasound image in a fifth display mode, such as displaying the border of the region of interest as green, as shown in the top graph of fig. 3. If the depth of the region of interest does not meet the sixth preset condition, the region of interest is traversed by a blood vessel, the distance between the region of interest and the gallbladder or kidney does not meet the seventh preset condition, or the distance between the region of interest and the edge of the target portion does not meet the eighth preset condition, the region of interest is not suitable for instantaneous elasticity measurement, and accuracy of the instantaneous elasticity measurement result is affected, the region of interest may be displayed in a display mode different from the fifth display mode in the ultrasound image, such as displaying that a border of the region of interest is red, as shown in a middle graph in fig. 3.

In addition, when the depth of the region of interest does not meet the sixth preset condition, the distance between the region of interest and the gall bladder or kidney does not meet the seventh preset condition, or the distance between the region of interest and the edge of the target portion does not meet the eighth preset condition, a directional identification of the position correction of the region of interest and/or a correction suggestion for the position of the region of interest, which is used for indicating the adjustment direction of the position of the region of interest, may be displayed in the ultrasound image, the correction suggestion is used for prompting the user to correct the position of the region of interest toward the adjustment direction, so that the depth of the region of interest meets the sixth preset condition, the distance between the region of interest and the gall bladder or kidney does not meet the seventh preset condition, and the distance between the region of interest and the edge of the target portion meets the eighth preset condition.

As shown in the middle diagram of fig. 3, when the depth of the region of interest is too deep, in addition to the alarm information to indicate that the depth of the region of interest is too deep, a directional flag of the position correction of the region of interest may be displayed, such as displaying an adjustment direction of the position of the region of interest with a directional flag such as an arrow in an ultrasound image, or displaying a correction suggestion of the position of the region of interest in text, such as displaying a suggestion word such as "adjusting ROI upward", and the direction indicated by this suggestion word corresponds to the direction indicated by the arrow. Therefore, the operator adjusts the position of the ROI according to the displayed prompt information, so that the depth of the region of interest can meet the sixth preset condition, the region of interest is not traversed by the blood vessel, the distance between the region of interest and the gallbladder or kidney meets the seventh preset condition, and the distance between the region of interest and the edge of the target portion meets the eighth preset condition, so as to meet the requirement of instantaneous elasticity measurement on the region of interest.

In this embodiment, the ultrasound imaging device obtains the quality control results of each quality control index, and the quality control results of each quality control index may be input by the user, or may be obtained by the ultrasound imaging device from an information system storing patient information, or may be determined by the ultrasound imaging device according to an algorithm. The information according to which the quality control results of the quality control indexes are determined by the ultrasonic imaging device may be input by a user, may be obtained from an information system storing patient information, or may be determined according to a preset algorithm (e.g., determining the position of the region of interest according to the preset algorithm).

For example, the table of fig. 6 shows a plurality of quality control indicators and weights corresponding to each quality control indicator, which weights may be used in the calculation of the composite quality control score. As shown in FIG. 6, various quality control indexes related to patient information, such as whether a patient serum index is suitable, whether a patient has abdominal distension or ascites, whether a patient is a pregnant woman or the like, information according to which a quality control result is determined can be input by a doctor or obtained from an information system, quality control indexes corresponding to the items of scanning position selection, ROI selection and the like, whether an ultrasonic image obtained by an operator performing ultrasonic scanning has a large blood vessel or shadow, whether enough liver parenchyma exists, whether the ultrasonic image is matched with an associated inspection position (namely the historical ultrasonic image), and the like, whether the depth of an area of interest set by the operator is suitable, whether the blood vessel is traversed by the blood vessel, whether the area is close to the gall bladder or the kidney, and the like, are identified according to the preset image recognition algorithm, and the quality control index corresponding to the item of starting condition can be directly judged by the ultrasonic imaging device whether a measurement position is kept unchanged or moves in a small amplitude, and whether the probe pre-pressing is suitable or not. The method for acquiring the information according to which the quality control result of each quality control index is acquired by the ultrasonic imaging device is not limited in this embodiment.

In addition, the quality control indicators described in the present embodiment may further include other quality control indicators not listed in addition to the quality control indicators shown in fig. 6, and any factors that may affect the accuracy of the instantaneous elasticity measurement result are included in the quality control indicators described in the present embodiment.

The embodiment shown in fig. 2 can solve the technical problem that when a novice or an inexperienced operator cannot clearly determine the quantitative method and the judgment standard for quality control of the ultrasonic image, the operator is difficult to accurately and efficiently operate the instantaneous elasticity measurement. Based on the same inventive concept as the embodiment shown in fig. 2, the embodiment of the present application also provides another embodiment of a quality control method for instantaneous elasticity measurement, which can solve the above technical problems. As shown in fig. 7, this embodiment includes:

701. Transmitting ultrasonic waves to a target part of a testee, and receiving echoes of the ultrasonic waves to obtain ultrasonic echo signals;

702. obtaining an ultrasonic image according to the ultrasonic echo signal, and displaying the ultrasonic image;

703. Determining a region of interest based on the ultrasound image;

the operations performed in steps 701 to 703 are similar to those performed in steps 201 to 203 in the embodiment shown in fig. 2, and will not be described again.

704. Before starting instantaneous elasticity measurement of the region of interest, acquiring a historical ultrasonic image of the instantaneous elasticity measurement of the testee based on the target part;

In this embodiment, the quality control of the ultrasonic image during the transient elasticity measurement is that of the current ultrasonic image relative to the historical ultrasonic image, where the historical ultrasonic image is a historical ultrasonic image of the subject performing the transient elasticity measurement based on the target portion, that is, the ultrasonic image according to which the subject previously performed the transient elasticity measurement, for example, the ultrasonic image according to which the subject previously performed the transient elasticity measurement.

Therefore, to determine this quality control and determine the result of this quality control, the ultrasound imaging device may determine the historical ultrasound image before initiating the instantaneous elasticity measurement of the region of interest, so as to determine and measure the quality control result of the ultrasound image obtained by the current ultrasound scanning of the operator according to the historical ultrasound image.

705. Determining a quality control evaluation result according to the matching degree of the ultrasonic image and the historical ultrasonic image;

706. displaying the quality control evaluation result, wherein the quality control evaluation result is used for indicating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not;

The ultrasonic imaging device can determine the matching degree of the current ultrasonic image and the historical ultrasonic image, and determine a quality control evaluation result according to the matching degree. The matching degree can represent the matching degree between the current ultrasonic image and the historical ultrasonic image, the higher the matching degree is, the closer the current ultrasonic image is to the scanning position or the scanning direction of the target part is to the scanning position or the scanning direction of the historical ultrasonic image, the closer the corresponding positions are to the target part or the scanning direction of the historical ultrasonic image is, even the same position can be achieved, and at the moment, the comparison between the instantaneous elasticity measurement result obtained by the current ultrasonic image and the instantaneous elasticity measurement result corresponding to the historical ultrasonic image is more accurate and more meaningful. Therefore, the matching degree of the current ultrasonic image and the historical ultrasonic image is an important index for measuring the quality control condition of the current ultrasonic image.

After the historical ultrasonic image and the current ultrasonic image are obtained, a quality control evaluation result is determined according to the matching degree of the current ultrasonic image and the historical ultrasonic image, and the quality control evaluation result is displayed. Because the quality control evaluation result is a comprehensive result determined based on the current ultrasonic image and the historical ultrasonic image, the quality control evaluation result can reflect the quality control condition of the current ultrasonic image relative to the historical ultrasonic image, and the better the quality control evaluation result is, the more satisfied the condition for starting the instantaneous elasticity measurement of the region of interest is, namely, the quality control evaluation result indicates whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not. The user can directly confirm whether the instantaneous elasticity measurement can be started to the region of interest through the quality control evaluation result, the current ultrasonic image and the historical ultrasonic image do not need to be compared in person to determine the quality control condition of the current ultrasonic image, the requirement of the instantaneous elasticity measurement on the operation experience of an operator is reduced, and therefore the instantaneous elasticity measurement can be better assisted by a novice operator or an operator with insufficient experience, and the measurement efficiency and accuracy of the instantaneous elasticity measurement are improved.

In addition to determining the quality control evaluation result according to the matching degree, the ultrasonic imaging device can also identify and determine the similarity between the current ultrasonic image and the historical ultrasonic image based on the image identification algorithm and the image comparison algorithm, and then determine the quality control evaluation result according to the similarity. The present embodiment is not limited to the manner of determining the quality control evaluation result according to the current ultrasound image and the historical ultrasound image.

The quality control evaluation result can be expressed in the form of quality control score, that is, the ultrasonic imaging device can calculate the quality control score according to the matching degree between the current ultrasonic image and the historical ultrasonic image, for example, the quality control score is a percentage, and if the matching degree is 90%, the quality control score can be determined to be 90. In addition, quality control evaluation information can be determined according to the quality control score or the matching degree, and the quality control evaluation information is used for evaluating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not. When the quality control evaluation result is displayed, only the quality control score, only the quality control evaluation information, or both the quality control score and the quality control evaluation information can be displayed.

Therefore, the user can intuitively and rapidly determine whether the instantaneous elasticity measurement can be started or not through the quality control score or the quality control evaluation information, and the quality control efficiency of the instantaneous elasticity measurement operation is improved.

The quality control evaluation information may be information for directly evaluating quality control conditions, such as "good quality control", "poor quality control", "fair quality control", etc., and may also include a start suggestion for whether instantaneous elasticity measurement can be started. Therefore, when the quality control evaluation information is displayed, if the matching degree meets the preset condition, a starting suggestion capable of starting instantaneous elasticity measurement of the region of interest in the current ultrasonic image is displayed, and if the matching degree does not meet the preset condition, a starting suggestion for starting instantaneous elasticity measurement of the region of interest after adjusting the ultrasonic image is displayed, or a starting suggestion for starting instantaneous elasticity measurement which cannot be started is displayed. The adjusting the ultrasonic image may be adjusting the scanning position or the scanning direction of the current ultrasonic image on the target part, so that the current ultrasonic image is closer to the historical ultrasonic image, and the matching degree between the current ultrasonic image and the historical ultrasonic image is higher.

The quality control evaluation result is displayed in a manner that if the matching degree meets a preset condition, prompt information representing a first acceptable degree of quality control of the instantaneous elasticity measurement is displayed, and if the matching degree does not meet the preset condition, prompt information representing a second acceptable degree of quality control of the instantaneous elasticity measurement is displayed. Wherein the first acceptable level is higher than the second acceptable level.

For example, the first acceptable level of prompt information may be displayed as words with similar meanings such as "better quality control" or "better quality control", and the second acceptable level of prompt information may be displayed as words with similar meanings such as "general quality control", "poor quality control" or "poor quality control".

The preset condition corresponding to the matching degree may be a matching degree threshold value. For example, if the matching degree threshold is 90%, the matching degree can be determined to satisfy the preset condition when the matching degree is greater than 90%, otherwise, the matching degree does not satisfy the preset condition.

When the matching degree does not meet the preset condition, the ultrasonic imaging equipment can also display alarm information and/or display correction advice for adjusting the scanning position of the ultrasonic probe. The warning information is used for prompting that the matching degree is unqualified and/or prompting that the ultrasonic image is unqualified, and the correction suggestion is used for prompting a user to adjust the scanning position so as to improve the matching degree between the current ultrasonic image and the historical ultrasonic image.

Therefore, by displaying the warning information, a user can know whether the current ultrasonic image meets the requirement of instantaneous elasticity measurement on the ultrasonic image, and by displaying the correction suggestion, for a novice or an operator with insufficient experience, the user can clearly know how to adjust the scanning position or the scanning direction of the ultrasonic image, thereby being convenient for the user to correct the ultrasonic image.

In addition, the ultrasonic image can also display the historical ultrasonic image, so that a user can conveniently conduct ultrasonic scanning according to the historical ultrasonic image to obtain an ultrasonic image meeting the requirements. The degree of matching may also be displayed so that the user knows how well the ultrasound image matches the historical ultrasound image.

For example, as shown in fig. 8, an ultrasound sectional image in which an ultrasound image is two-dimensional is illustrated. In the review scene, the ultrasonic imaging device can display an ultrasonic section image obtained by current ultrasonic scanning, can display a historical section image according to which a testee previously conducts instantaneous elasticity measurement, can calculate the matching degree between the current ultrasonic section image and the historical section image, and if the matching degree does not meet a preset condition (such as being lower than a preset matching degree threshold value), can display a starting suggestion for restarting the instantaneous elasticity measurement after the correction of the ultrasonic section image, such as displaying words with similar meaning such as ' best restart after correction ', can also display alarm information, such as displaying a prompting word with lower matching degree with the review section ', can display a specific value of the matching degree and display a correction suggestion, such as displaying a suggested word of ' adjusting section ', and can enable a user to know that the current ultrasonic section image does not meet the requirement and clearly how to adjust the ultrasonic section image.

It should be noted that, the present embodiment is not limited to the above-mentioned information such as the start suggestion, the alarm information, the correction suggestion, the matching degree, etc. to be displayed, for an operator having a certain experience of instantaneous elastic measurement operation, the operator can know whether the ultrasonic image meets the requirement or not through the quality control evaluation result or the quality control score, and know how to adjust the ultrasonic image when the ultrasonic image does not meet the requirement, and at this time, the above-mentioned information may not be displayed for simplifying the interface display. Or, whether the starting advice, the alarm information, the correction advice, the matching degree and other information are displayed or not can be set by the user according to the needs.

The respective constituent elements of the ultrasound imaging apparatus and the functions and operations performed by each constituent element will be described in further detail below based on the specific structural composition of the ultrasound imaging apparatus and the functions of the respective structures shown in fig. 1 described above. An embodiment of an ultrasonic imaging apparatus according to an embodiment of the present application includes:

an ultrasonic probe;

the receiving circuit is used for controlling the ultrasonic probe to receive the echo of the ultrasonic wave returned by the target part, and obtaining an ultrasonic echo signal;

And a processor for processing the ultrasonic echo signals to obtain an ultrasonic image of the target site, and performing a quality control method of instantaneous elasticity measurement performed by the ultrasonic imaging device in the embodiment shown in fig. 2 or fig. 7 and a plurality of preferred embodiments thereof based on the ultrasonic image.

The functions and the operations performed by the components of the ultrasound imaging apparatus in this embodiment are similar to those performed by the ultrasound imaging apparatus in the embodiment shown in fig. 2 or fig. 7 and the preferred embodiments thereof, and are not described herein.

In this embodiment, the user can directly confirm whether the instantaneous elasticity measurement can be started to the region of interest through the comprehensive quality control score or the comprehensive quality control evaluation result, and does not need to confirm whether the quality control result of each quality control index is qualified one by one, thereby better assisting a novice or an operator with insufficient experience in operating the instantaneous elasticity measurement and improving the measurement efficiency and accuracy of the instantaneous elasticity measurement.

It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described systems, apparatuses and units may refer to corresponding procedures in the foregoing method embodiments, which are not repeated herein.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. The storage medium includes a usb disk, a removable hard disk, a read-only memory (ROM), a random-access memory (RAM, random access memory), a magnetic disk, an optical disk, or other various media capable of storing program codes.

Claims

1. A quality control method for instantaneous elasticity measurement, the method comprising:

determining a region of interest based on the ultrasound image;

2. The method according to claim 1, wherein the displaying the integrated quality control score and/or displaying an integrated quality control assessment result based on the integrated quality control score comprises:

if the comprehensive quality control score indicates that the instantaneous elasticity measurement of the region of interest is suitable to be started, displaying the comprehensive quality control score and/or the comprehensive quality control evaluation result in a first display mode;

If the comprehensive quality control score indicates that the quality control result with quality control risk is corrected to be suitable for starting instantaneous elasticity measurement on the region of interest, displaying the comprehensive quality control score and/or the comprehensive quality control evaluation result in a second display mode;

if the comprehensive quality control score indicates that the instantaneous elasticity measurement of the region of interest is not suitable to be started, displaying the comprehensive quality control score and/or the comprehensive quality control evaluation result in a third display mode;

Wherein the first display style, the second display style, and the third display style are different from one another.

3. The method according to claim 1 or 2, wherein if the integrated quality control score indicates that it is suitable to initiate the instantaneous elasticity measurement of the region of interest, the integrated quality control assessment result comprises a start suggestion that the instantaneous elasticity measurement of the region of interest can be initiated and/or a prompt message indicating a first acceptable level of quality control of the instantaneous elasticity measurement;

If the comprehensive quality control score indicates that the quality control result with quality control risk is corrected to be suitable for starting instantaneous elasticity measurement on the region of interest, the comprehensive quality control evaluation result comprises starting suggestion for starting the instantaneous elasticity measurement on the region of interest after the quality control result with quality control risk is corrected, and/or prompting information representing a second acceptable degree of quality control of the instantaneous elasticity measurement;

If the comprehensive quality control score indicates that the instantaneous elasticity measurement of the region of interest is not suitable to be started, the comprehensive quality control evaluation result comprises advice that the instantaneous elasticity measurement cannot be started and/or prompt information representing a third acceptable degree of quality control of the instantaneous elasticity measurement;

Wherein the first acceptable level is higher than the second acceptable level, which is higher than the third acceptable level.

4. The method of claim 1 or 2, wherein displaying the composite quality control assessment based on the composite quality control score comprises:

Displaying a first region in a preset graph in a fourth display mode, and displaying other regions except the first region in the preset graph in a display mode different from the fourth display mode;

the duty ratio and/or the color of the first region in the preset graph are determined according to the comprehensive quality control score, and the duty ratio and/or the color are used for indicating the suitability degree of starting the instantaneous elasticity measurement of the region of interest.

5. The method according to any one of claims 1 to 4, wherein when the integrated quality control score indicates that instantaneous elasticity measurement of the region of interest is unsuitable for starting, and/or when the integrated quality control score indicates that quality control results at risk of quality control are modified to be suitable for starting instantaneous elasticity measurement of the region of interest, the method further comprises:

determining quality control results with quality control risks in a plurality of quality control results corresponding to the quality control indexes, and displaying the quality control results with quality control risks;

The quality control result with quality control risk comprises at least one of the serum index of the testee not meeting a first preset condition, the belly distension or ascites of the testee, the testee being pregnant, the active implant being in the body of the testee, the body quality index of the testee not meeting a second preset condition, a large blood vessel or shadow being present in the ultrasonic image, a substantial sign of the target part in the ultrasonic image not meeting a third preset condition, the thickness of a fat layer in the ultrasonic image not meeting a fourth preset condition, the matching degree of the ultrasonic image and a historical ultrasonic image of the testee based on the instantaneous elasticity measurement of the target part not meeting a fifth preset condition, the depth of the region of interest not meeting a sixth preset condition, the distance between the region of interest and a blood vessel, the region of interest and a kidney not meeting a seventh preset condition, the distance between the region of interest and the edge of the target part not meeting an eighth preset condition, the ultrasonic image not meeting a corresponding motion amplitude of the ultrasonic image and a ninth preset condition, and a small ultrasonic pressure applied to the user-held condition.

6. The method of claim 5, wherein the method further comprises:

And displaying a correction suggestion according to the quality control result with the quality control risk, wherein the correction suggestion is used for prompting a user to input a corresponding correction operation so as to reduce the quality control risk of the quality control result.

7. The method of claim 6, wherein the method further comprises:

displaying the historical ultrasonic image and displaying the matching degree of the ultrasonic image and the historical ultrasonic image;

the displaying correction advice according to the quality control result with quality control risk includes:

If the matching degree does not meet the fifth preset condition, displaying alarm information and/or displaying correction advice for adjusting the scanning position of the ultrasonic probe;

The warning information is used for prompting that the matching degree is unqualified and/or prompting that the ultrasonic image is unqualified, and the correction advice is used for prompting a user to adjust the scanning position so as to improve the matching degree.

8. The method according to any one of claims 1 to 7, wherein the obtaining a quality control score corresponding to each quality control result comprises:

For each quality control result, giving a first quality control score to the quality control result when the quality control result indicates that a quality control risk exists; when the quality control result indicates that the quality control risk does not exist, a second quality control score is given to the quality control result;

The calculating the comprehensive quality control score based on the quality control scores and the weights corresponding to the quality control indexes comprises the following steps:

And calculating to obtain the comprehensive quality control score according to the first quality control score of the quality control result with the quality control risk in the quality control results, the second quality control score of the quality control result without the quality control risk in the quality control results and the weights respectively corresponding to the quality control indexes.

9. The method according to any one of claims 1 to 7, wherein after the determination of the region of interest based on the ultrasound image, the method further comprises:

If the depth of the region of interest meets the sixth preset condition, the region of interest is not traversed by a blood vessel, the distance between the region of interest and the gall bladder or kidney meets the seventh preset condition, and the distance between the region of interest and the edge of the target part meets the eighth preset condition, displaying the region of interest in a fifth display mode on the ultrasonic image;

And if the depth of the region of interest does not meet the sixth preset condition, the region of interest is traversed by a blood vessel, the distance between the region of interest and the gall bladder or kidney does not meet the seventh preset condition or the distance between the region of interest and the edge of the target part does not meet the eighth preset condition, displaying the region of interest in a display mode different from the fifth display mode in the ultrasonic image.

10. The method according to claim 9, wherein if the depth of the region of interest does not meet the sixth preset condition, the region of interest is traversed by a blood vessel, the distance of the region of interest from a gallbladder or kidney does not meet the seventh preset condition, or the distance of the region of interest from an edge of the target site does not meet the eighth preset condition, the method further comprises:

Displaying a directional identification of the position correction of the region of interest in the ultrasonic image and/or displaying a correction suggestion for the position of the region of interest, wherein the directional identification is used for indicating an adjustment direction of the position of the region of interest, and the correction suggestion is used for prompting a user to correct the position of the region of interest towards the adjustment direction so that the depth of the region of interest meets the sixth preset condition, the region of interest is not traversed by a blood vessel, the distance between the region of interest and a gall bladder or kidney meets the seventh preset condition and the distance between the region of interest and the edge of the target part meets the eighth preset condition.

11. A quality control method for instantaneous elasticity measurement, the method comprising:

determining a region of interest based on the ultrasound image;

12. The method of claim 11, wherein the determining a quality control assessment result based on a degree of matching of the ultrasound image and the historical ultrasound image comprises:

calculating according to the matching degree to obtain a quality control score;

the displaying the quality control evaluation result includes:

And displaying the quality control score and/or displaying quality control evaluation information obtained based on the quality control score, wherein the quality control evaluation information is used for evaluating whether the instantaneous elasticity measurement of the region of interest is suitable to be started or not.

13. The method according to claim 11 or 12, wherein displaying the quality control evaluation result comprises:

if the matching degree meets the preset condition, displaying a starting suggestion for starting the instantaneous elasticity measurement of the region of interest;

And if the matching degree does not meet the preset condition, displaying a starting suggestion for carrying out the instantaneous elasticity measurement on the region of interest after adjusting the ultrasonic image, or displaying a suggestion for not starting the instantaneous elasticity measurement.

14. The method according to claim 11 or 12, wherein displaying the quality control evaluation result comprises:

if the matching degree meets the preset condition, displaying prompt information representing a first acceptable degree of quality control of instantaneous elasticity measurement;

if the matching degree does not meet the preset condition, displaying prompt information representing a second acceptable degree of quality control of instantaneous elasticity measurement;

wherein the first acceptable level is higher than the second acceptable level.

15. The method according to claim 13 or 14, wherein if the matching degree does not meet the preset condition, the method further comprises:

Displaying alarm information and/or displaying correction advice for adjusting the scanning position of the ultrasonic probe;

16. The method according to any one of claims 11 to 15, further comprising:

displaying the historical ultrasound image, and/or displaying the matching degree.

17. An ultrasonic imaging apparatus, comprising:

an ultrasonic probe;

A processor for processing the ultrasound echo signals to obtain an ultrasound image of the target site and performing the quality control method of instantaneous elasticity measurement of any one of claims 1 to 16 based on the ultrasound image.