WO2018003681A1 - Injection system, data processing device, and injection device - Google Patents

Abstract

Provided is an injection system, comprising an injection device which injects a medical fluid, and a radiation detection device which detects radiation and transmits first radiation data to the injection device. The injection device further comprises a history creation unit which creates medical fluid injection history data, and a data creation unit which creates second radiation data in which the first radiation data is associated with time data which is common to the injection history data.

Description

Injection system, data processing device and injection device

The present invention relates to an injection system including a radiation detection device, a data processing device for processing radiation data, and an injection device.

Acquisition of exposure time timing data and chemical injection history data for imaging examinations, creating injection result graphs that display injection history data and exposure time timing data together, and display them on the display unit A data processing apparatus is known (Patent Document 1). This data processing device acquires exposure time timing data created by the imaging device from a storage unit of the imaging device or PACS (Picture Archiving and Communication Systems).

Exposure time timing data includes imaging start time data and imaging end time data. Then, since the injection start time of the contrast agent and the imaging start time may not match, the injection result graph is preferably created based on common time data. For example, as time data provided by the imaging device, time data of an NTP (Network Time Protocol) server, time data of another time server in which time is set based on the NTP server, time is set based on these servers. In addition, there is time data of a predetermined device and time data of an imaging device in which time is set based on these servers, and these can be used.

International Publication No. 2014/168216

However, few medical institutions have introduced NTP servers, which limited the use of the injection result graph. On the other hand, the injection device and the imaging device each create time data. However, when the time data is not synchronized, the time difference between the injection device and the imaging device is large. For this reason, the data of the injection start timing and the exposure timing cannot be accurately associated with each other.

In order to solve the above problems, an injection system as an example of the present invention includes an injection device that injects a chemical solution, and a radiation detection device that detects radiation and transmits first radiation data to the injection device, The injection device includes a history creation unit that creates injection history data of the drug solution, and a data creation unit that creates second radiation data in which the first radiation data is associated with time data common to the injection history data. It is characterized by.

In addition, the data processing apparatus as another example of the present invention includes a data acquisition unit that acquires injection history data of a chemical solution injected into a subject, and radiation data associated with the injection history data and common time data, An exposure determination unit that determines an exposure timing from the radiation data, and a graph creation unit that generates an injection result graph by combining the exposure timing with the injection history data.

In addition, the data processing apparatus as another example of the present invention includes a data acquisition unit that acquires injection history data of a chemical solution injected into a subject, and radiation data associated with the injection history data and common time data, And a graph creation unit for creating an injection result graph by combining the radiation data with the injection history data.

An injection device as another example of the present invention is an injection device for injecting a chemical solution, an interface for receiving first radiation data from a radiation detection device, and a first interface that associates the first radiation data with time data. And a data creation unit that creates radiation data, and the interface transmits the second radiation data to an external device.

This allows the injection device to create radiation data associated with the time data and send it to the external device. Further, the injection history data and the exposure timing or radiation data can be used based on common time data.

Further features of the present invention will become apparent from the following description of embodiments, given by way of example with reference to the accompanying drawings.

1 is a schematic overall view of a data processing system according to a first embodiment. 1 is a schematic block diagram of a data processing system according to a first embodiment. It is a graph which shows the radiation dose which the radiation detection apparatus detected. It is a flowchart for demonstrating the data processing which concerns on 1st Embodiment. It is an injection | pouring result graph which a data processor produces. It is a schematic whole figure of the data processing system concerning a 2nd embodiment. It is a schematic block diagram of the data processing system which concerns on 2nd Embodiment. It is a flowchart for demonstrating the data processing which concerns on 2nd Embodiment.

Hereinafter, exemplary embodiments for carrying out the present invention will be described in detail with reference to the drawings. However, dimensions, materials, shapes, and relative positions of components described in the following embodiments are arbitrary, and can be changed according to the configuration of the apparatus to which the present invention is applied or various conditions. In addition, unless otherwise specified, the scope of the present invention is not limited to the embodiments specifically described below.

[First Embodiment]
As shown in FIG. 1, the data processing system 1000 includes an injection system 100 and a radiation imaging apparatus 150 that captures a fluoroscopic image of a subject. The injection system 100 includes an injection device 110 that injects a chemical solution, and a radiation detection device 190 that detects radiation and transmits first radiation data to the injection device 110. Examples of the radiation imaging apparatus 150 include various medical imaging apparatuses such as a CT (Computed Tomography) apparatus and a CT angio apparatus. The data processing system 1000 includes an external storage device 180 such as PACS, RIS (Radiology Information System), and HIS (Hospital Information System), and a data processing device 130 such as an image generation device, a computer, and a workstation. Yes.

The radiation imaging device 150, the injection device 110, and the external storage device 180 are wired or wirelessly connected via a LAN (Local Area Network) or a dedicated line, respectively, and can transmit / receive various data to / from each other. This data can be created according to DICOM (Digital Imaging and Communication Communications in Medicine), which is a standard for digital medical images. The injection device 110 is connected to the radiation detection device 190 in a wired or wireless manner. For example, the injection device 110 is wirelessly connected to the radiation detection device 190 in accordance with the Bluetooth (registered trademark) standard. The injection device 110 is connected to the data processing device 130 via a LAN cable.

[Radiation imaging equipment]
A CT apparatus will be described as an example of the radiation imaging apparatus 150. The radiation imaging apparatus 150 includes an imaging unit 151 that irradiates a patient with X-rays to capture a fluoroscopic image of a subject, a control device 160 connected to the imaging unit 151, and a display 159 connected to the control device 160. It has. The imaging unit 151 includes a bed 153 on which a subject is placed, an X-ray source (not shown) that irradiates the subject with X-rays, and an X-ray detector (not shown) that detects X-rays transmitted through the subject. Yes. Then, the imaging unit 151 irradiates the subject with X-rays, and back-projects the inside of the subject based on the X-rays transmitted through the subject, thereby capturing a fluoroscopic image of the subject. Note that the control device 160 and the display 159 can be configured integrally.

As shown in FIG. 2, which is a block diagram, the control device 160 includes an imaging control unit 161, a storage unit 162, and an interface (I / F) 163. The imaging control unit 161 has a CPU (Central Processing Unit), an FPGA (Field-Programmable Gate Array), a drive circuit, and the like.

The imaging control unit 161, for example, assigns identification information (image ID) to a fluoroscopic image, imparts exposure time timing data to the fluoroscopic image, and externally transmits the fluoroscopic image data (injection device 110, data processing device 130). Or the external storage device 180), the exposure time timing data is transmitted to the outside, the exposure amount data is transmitted to the outside, the identification information of the performed imaging is transmitted to the outside, and the Time sequence data of the imaging operation for fusion inspection can be transmitted to the outside. Then, the imaging control unit 161 stores the fluoroscopic image data, the exposure time data, and the like in the storage unit 162.

The storage unit 162 includes a RAM (Random Access Memory) that is a system work memory for operating the CPU, a ROM (Read Only Memory) in which a control program or system software is stored, a hard disk drive, and the like.

The radiation imaging apparatus 150 is connected to the external storage device 180 and the data processing device 130 via the interface 163. This interface may be a separate interface for each device, or may be the same interface. Furthermore, the radiation imaging apparatus 150 can be connected to the injection apparatus 110 via the interface 163 in order to link the injection operation and the imaging operation. The control device 160 includes a user interface (not shown) that functions as a data input device.

The exposure time data created by the radiation imaging apparatus 150 includes, for example, exposure start time data, exposure end time data, and time data of elapsed time from the start to end of exposure. This exposure time data includes NTP server time data, other time server time data set based on the NTP server, predetermined device time data set based on these servers, And the time data of the radiation imaging apparatus 150 in which the time is set based on these servers. In addition, when imaging several times by one test | inspection, the time data of each exposure are produced.

[Injection device]
Returning to FIG. 1 showing the entire system, the injection device 110 will be described. The injection device 110 includes an injection head 111 on which two syringes (not shown) each filled with a chemical solution (for example, contrast medium and physiological saline) are mounted, and a control device (console) 120 that controls the injection head 111. It has. The console 120 includes a touch panel 129 that functions as an operation unit and a display unit that displays a state of injection of a chemical solution. The console 120 and the injection head 111 are wire-connected via a metal cable and an optical cable. The console 120 and the injection head 111 may be wirelessly connected, for example, may be connected by a wireless method using a frequency band of 2.4 GHz to 5 GHz. A remote control device (not shown) such as a hand switch can also be connected to the injection head 111 or the console 120 by wire or wireless.

The injection head 111 is mounted on the caster stand 112 and can be moved and arranged near the bed 153 of the radiation imaging apparatus 150. The power source of the injection head 111 can be provided in the injection head 111 or the console 120. In addition, a power source independent from the injection head 111 can be provided separately, and the power source can be replaced with a battery. Note that a ceiling suspension member may be provided instead of the caster stand 112, and the injection head 111 can be suspended from the ceiling via this ceiling suspension member.

The injection head 111 is provided with operation buttons such as a forward button, an acceleration button, a backward button, a check button, and a start button. The operator can manually operate the injection head 111 by operating the operation buttons. Specifically, the pressing portion of the injection head 111 moves forward while the operator presses the forward button, and the pressing portion moves backward while the operator presses the backward button. When the operator presses the check button, the injection head 111 stands by in a state where injection is possible. Thereafter, when the operator presses the start button, the injection head 111 advances the pressing portion and starts the injection of the chemical solution. The operation buttons are also displayed on the touch panel 129 of the console 120. The operator can also operate the injection head 111 by operating the touch panel 129.

The injection head 111 has a drive mechanism (not shown). For example, the drive mechanism includes a transmission mechanism connected to the shaft of the motor, a screw shaft connected to the transmission mechanism, a trapezoidal screw nut attached to the screw shaft, and an actuator connected to the trapezoidal screw nut. The transmission mechanism includes a pinion gear connected to the shaft and a screw gear connected to the screw shaft. The transmission mechanism transmits the rotation from the motor to the screw shaft. Thereby, the rotation of the shaft of the motor is transmitted to the screw shaft via the pinion gear and the screw gear. Therefore, the screw shaft rotates according to the transmitted rotation, and the trapezoidal screw nut slides in the forward direction or the backward direction as the screw shaft rotates. As the trapezoidal screw nut slides, the pressing portion moves forward or backward.

The syringe mounted on the injection head 111 is attached with a piston that can slide within the syringe. This syringe may be either a syringe filled with a chemical solution or an empty syringe not filled with a chemical solution. Then, when the motor rotates forward with the rear end of the piston in contact with the pressing portion, the pressing portion pushes the piston in the forward direction. When the piston moves forward, the drug solution in the syringe is pushed out and injected into the body of the subject through an extension tube connected to the tip of the syringe. On the other hand, when the motor reverses, the pressing portion pulls the piston in the backward direction. A syringe filled with a chemical solution is prefilled syringe prefilled with a chemical solution, a syringe obtained by manually filling an empty syringe with a chemical solution, and an operator emptying with an aspirator or a filling device. The syringe obtained by filling the syringe with a chemical solution is included. In addition, when an empty syringe is mounted on the injection device 110, the operator can fill the syringe with the chemical solution using the injection device 110, a suction device, or a filling device.

The syringe can be provided with a data carrier such as RFID (Radio Frequency Identifier) or barcode. In this data carrier, information on the filled chemical solution is recorded. The injection device 110 can read information recorded from the data carrier via the injection head 111 and control the injection pressure of the chemical solution. For example, the console 120 can calculate the optimal injection amount per body weight based on the read information on the drug solution (iodine amount or gadolinium content) and display it on the touch panel 129.

When injecting a chemical solution, the operator turns on the power of the injection device 110 and mounts a syringe on the injection head 111 to complete the preparation for injection. Then, the operator operates the operation buttons of the touch panel 129 or the injection head 111 to input data necessary for creating the injection protocol to the console 120. For example, the necessary data includes physical data of the subject such as body weight, height, body surface area, heart rate, and cardiac output, and data on the type of drug solution. Note that the operator may turn on the power of the injection device 110 after mounting the syringe. Further, the injection protocol, drug solution data, and the like can be input to the console 120 from an external storage medium.

The console 120 stores in advance a basic injection protocol such as an injection speed, an injection amount, an injection time, and an injection maximum pressure (injection pressure limit value), and data of a chemical solution. Then, the console 120 determines an individual injection protocol suitable for an individual subject according to the input data and the data stored in advance. Further, the console 120 displays predetermined data such as the injection speed, the injection amount, and the injection time on the touch panel 129. The operator can check the contents of the determined injection protocol and change the contents if necessary. The injection protocol may be locked with a password so that a third party cannot change it.

The console 120 may display the injection protocol on an external device such as a portable display or a tablet computer. These devices are wirelessly connected to the injection head 111 or the console 120 according to a standard such as Bluetooth (registered trademark) or Wi-Fi, and can be used as a head display of the injection head 111.

When the operator completes the preparation for injection and confirms the injection protocol, the operator presses the check button on the injection head 111 or the touch panel 129. Thereby, the injection head 111 stands by in a state where injection is possible. Thereafter, the operator presses the start button of the injection head 111 or the remote control device or the start button displayed on the touch panel 129 to start the injection. Thereafter, the injection head 111 automatically injects the chemical solution according to the injection protocol. When the injection head 111 has a head display, the operator can also start injection by pressing a start button displayed on the head display.

As shown in FIG. 2, which is a block diagram, the injection device 110 is arranged on the outer surface of the console 120 and the injection control unit 121 and the storage unit 122 arranged in the case of the console 120 and displays a predetermined image. And a touch panel 129 that functions as an operation panel. The injection control unit 121 includes a CPU, FPGA, drive circuit, and the like. The storage unit 122 includes a RAM that is a system work memory for operating the CPU, a ROM that stores a control program or system software, a hard disk drive, and the like.

The injection control unit 121 controls the entire injection device 110 based on a program or the like stored in the storage unit 122, and comprehensively controls various processes. That is, the injection control unit 121 can execute various processing operations such as calculation, control, and determination according to the control program stored in the storage unit 122. The injection control unit 121 can also perform control according to a program stored in an external storage medium such as a CD (Compact Disc) or a server on the Internet.

Further, the injection control unit 121 includes a history creation unit 124 that creates the injection history data of the drug solution, and second radiation data that associates the first radiation data received from the radiation detection device 190 with time data that is common to the injection history data. And a data creation unit 125 to create. The injection history data created by the history creation unit 124 is transmitted by the interface 123 to the external storage device 180 and the data processing device 130. This injection history data includes a pressure graph showing the relationship between the elapsed time from the start of injection and the injection pressure (including estimated value), injection speed, injection volume, injection time (injection duration), injection pressure, injection time, It includes data such as the type of medicinal solution, the iodine amount of the contrast medium, the body segment or imaging region into which the medicinal solution has been injected, identification information for identifying medicinal solution injection, identification information on the subject, and a set injection protocol.

For example, in the pressure graph, the estimated value of the injection pressure calculated using the load cell of the injection head 111 or the motor current is plotted in association with the elapsed time from the start of injection. The pressure graph may be numerical data or image data, and the format is not particularly limited. In addition, the identification information for identifying the chemical injection includes the serial number of the test, the injection work ID, and the injection date / time. The identification information of the subject includes a name, a subject ID, and a date of birth. In addition, the body segment into which the chemical solution has been injected includes, for example, a part of the body such as the head, chest, and abdomen, and the imaging site includes imaging locations such as the heart, liver, and blood vessels in the body segment. It is.

As the common time data, time data preset in the injection device 110 can be used. For example, the data creation unit 125 can use the injection start time data as common time data. In this case, the data creation unit 125 creates second radiation data by associating detection timing data indicating the timing at which radiation is detected with the elapsed time from the injection start time. The data creation unit 125 may create the second radiation data by associating the radiation dose data for each time indicating the detected radiation dose with the elapsed time from the injection start time.

The injection device 110 includes an interface (I / F) 123 for connecting to the external storage device 180, the data processing device 130, and the radiation detection device 190. The interface 123 receives the first radiation data from the radiation detection device 190 and transmits the second radiation data created by the data creation unit 125 to the external device (the external storage device 180 and the data processing device 130). The interface may be a separate interface for each device or the same interface. In order to link the injection operation and the imaging operation, the injection device 110 can be connected to the radiation imaging device 150 via the interface 123.

[Radiation detector]
The radiation detection apparatus 190 is wired or wirelessly connected to the injection apparatus 110, for example, wirelessly connected to the injection apparatus 110 according to the Bluetooth (registered trademark) standard. Then, the radiation detection device 190 detects radiation (scattered rays) emitted from the radiation imaging device 150 and transmits the radiation data to the injection device 110 as radiation data. As the radiation detector 190, various detectors using detectors such as a GM (Geiger-Muller) counter, a scintillator, or a semiconductor detector can be used. The radiation detection apparatus 190 may include a user interface (not shown) for inputting data such as a predetermined threshold value.

Further, the radiation detection apparatus 190 is configured to start detection of radiation in accordance with a detection start command received from the injection control unit 121 of the injection apparatus 110. When the injection control unit 121 transmits a detection start command simultaneously with the start of the injection of the chemical solution, the time between the injection history data and the radiation data can be synchronized, for example, based on the injection start timing. Thereby, the data creation part 125 of the injection | pouring control part 121 can create the data which shows when radiation was detected or when it was a radiation dose on the basis of injection | pouring start timing.

Specifically, the radiation dose data transmitted by the radiation detection apparatus 190 is shown as a graph in FIG. In FIG. 3, the vertical axis represents the radiation dose (mGy / s), and the horizontal axis represents the elapsed time (ms) from the start of detection. This radiation dose data was obtained by measurement under the following conditions.

First, the sensor of the radiation detector 190 was attached to a ceiling member that suspended the injection head 111 from the ceiling. At this time, the distance from the sensor to the imaging unit 151 of the radiation imaging apparatus 150 was 60 cm. And the personal computer was arrange | positioned on the outer side of CT room in which the injection apparatus 110 and the radiation imaging device 150 were installed. Thereafter, radiation (scattered light) was measured when the radiation imaging apparatus 150 exposed the phantom under the conditions of a tube voltage of 120 KV and an exposure time of 2.45 s. The radiation dose data transmitted by the radiation detector 190 was received by a personal computer. As the phantom, a phantom composed of 10.9 L of pure water, 21.8 g of sodium chloride and 6.0 g of copper sulfate was used.

As shown in FIG. 3, no radiation was detected immediately after the start of detection (0 mGy / s), but when about 1373.07 ms passed from the start of measurement, a radiation of about 0.00445 mGy / s was detected. Thereafter, when about 1525.64 ms passed from the start of detection, radiation of about 0.00719 mGy / s was detected (first peak). Subsequently, after detecting the second to seventh peaks, when about 3830.15 ms passed from the start of detection, about 0.00097 mGy / s of radiation was detected. After that, no radiation was detected (0 mGy / s).

The time from when the radiation was detected until it was no longer detected was about 2457.08 ms, which was almost the same as the exposure time (2450 ms). Therefore, it can be understood that the radiation start timing, the exposure end timing, and the length of the exposure time can be determined almost accurately by detecting the radiation (scattered rays) by the radiation detection device 190.

The radiation detection apparatus 190 uses, as the first radiation data, the radiation dose data indicating the detected radiation dose, or the detection timing data indicating the timing at which the radiation having a predetermined threshold value or more is detected. And is transmitted to the infusion device 110. In the case of transmitting the detection timing data, in the example of FIG. 3, the radiation detection apparatus 190 has a predetermined time interval (for example, every 8 ms) from about 1373.07 ms to about 3830.15 ms. The data indicating that the radiation has been detected is transmitted to the injection device 110.

[Data processing equipment]
The data processing device 130 of the first embodiment is an image generation device that is connected to the console 120 of the injection device 110 by wire or wireless, for example. The data processing device 130 acquires injection history data and second radiation data from the injection device 110. As shown in FIG. 2 which is a block diagram, the data processing device 130 is connected to a personal computer (PC) 138 having a display 139 by wire or wireless connection. The data processing device 130 can be operated via the personal computer 138. In accordance with the operation of the operator, the data processing device 130 transmits various data such as the acquired injection history data and second radiation data to the personal computer 138. Then, the personal computer 138 displays various received data on the display 139. The personal computer 138 includes a user interface (not shown) that functions as a data input device.

The data processing device 130 includes a data processing control unit 131, a storage unit 132, and an interface (I / F) 133. The data processing control unit 131 includes a CPU, FPGA, drive circuit, and the like, and processes data received from the injection device 110. The storage unit 132 includes a RAM that is a system work memory for operating the CPU, a ROM that stores a control program or system software, a hard disk drive, and the like. Further, the data processing device 130 is connected to the injection device 110 via the interface 133.

The data processing control unit 131 includes a data acquisition unit 134, an exposure determination unit 135, and a graph creation unit 136. The data acquisition unit 134 acquires injection history data and second radiation data from the injection device 110. The exposure determination unit 135 determines the exposure timing from the second radiation data. Then, the graph creation unit 136 creates an injection result graph by combining the exposure timing with the injection history data. The graph creation unit 136 stores the created injection result graph in the storage unit 132.

The data processing device 130 can also be operated by the console 120 of the injection device 110. Note that the data processing apparatus 130 may be disposed inside the personal computer 138. A personal computer 138 that functions as one data processing apparatus 130 by a computer program is also included in the data processing apparatus 130 of the first embodiment. In this case, the computer program is stored in the storage unit of the personal computer 138, for example.

[Data processing]
The data processing performed by the data processing device 130 will be described with reference to the flowchart of FIG. First, when the preparation for injection is completed, the operator presses the start button of the injection head 111 to start injection. In response to the operation of the operator, the injection control unit 121 causes the injection head 111 to inject the chemical solution according to the injection protocol.

The injection control unit 121 transmits a radiation detection start command to the radiation detection apparatus 190 at the same time as the injection is started (S101). When the detection start command is received (YES in S102), the radiation detection apparatus 190 starts detecting the radiation emitted from the radiation imaging apparatus 150 (S103). Simultaneously with the detection, the radiation detection apparatus 190 transmits the detected radiation as first radiation data to the injection apparatus 110 (S104). The injection control unit 121 stores the received first radiation data in the storage unit 122. When the detection start command is not received (NO in S102), the radiation detection apparatus 190 waits until the detection start command is received.

The imaging control unit 161 of the radiation imaging apparatus 150 causes the imaging unit 151 to image the imaging region of the subject according to a predetermined imaging plan set in advance. That is, the imaging control unit 161 causes the imaging unit 151 to capture an image at a timing when a predetermined time has elapsed from the start of injection and the contrast medium reaches the imaging site. Then, the imaging control unit 161 obtains the fluoroscopic image data of the imaging site and stores the fluoroscopic image data in the storage unit 162. Further, the imaging control unit 161 may store the data of the fluoroscopic image in the external storage device 180. Note that the imaging control unit 161 can also store the time data of the exposure start timing and the time data of the exposure end timing in the storage unit 162 or the external storage device 180.

The radiation detection device 190 continues to transmit the first radiation data to the injection device 110, and ends the detection after a predetermined time (for example, 60 s) has elapsed since the reception of the detection start command. This is because imaging is performed when a predetermined time elapses from the start of detection (start of injection) and the contrast agent reaches the imaging site, and then imaging is not performed. Therefore, the predetermined time is set in advance so that the contrast agent reaches the imaging region. Note that the radiation detection apparatus 190 may store the first radiation data and may transmit the first radiation data to the injection apparatus 110 when a predetermined time has elapsed since the reception of the detection start command.

The history creation unit 124 of the injection device 110 creates chemical injection history data during chemical injection, after chemical injection, or both. For example, injection history data includes time data such as injection start time, injection end time, and elapsed time from injection start, injection pressure data (pressure graph) indicating injection pressure for each elapsed time from injection start, and injection start. Injection amount data indicating the injection amount for every elapsed time since the start of injection, and injection rate data indicating the injection rate for every elapsed time since the start of injection. Then, the history creation unit 124 stores the created injection history data in the storage unit 122 of the injection device 110.

The data creation unit 125 of the injection device 110 acquires the first radiation data received from the radiation detection device 190 and the injection history data created by the history creation unit 124 from the storage unit 122. Then, the data creating unit 125 creates second radiation data in which the first radiation data is associated with time data common to the injection history data (S105). For example, the data creation unit 125 creates the second radiation data by associating the first radiation data with the time data of the elapsed time from the start of the injection in the injection history data. Thus, second radiation data indicating the relationship between the elapsed time from the start of injection and the radiation detection result is created.

When the imaging is completed, the operator operates the personal computer 138 connected to the data processing device 130 in order to create an injection result graph. Then, according to the operation of the operator, the data acquisition unit 134 of the data processing device 130 obtains the injection history data of the drug solution injected into the subject, and the second radiation data associated with the time data common to the injection history data. Obtained from the injection device 110 (S106). Note that what is acquired as the injection history data is arbitrary. For example, the data acquisition unit 134 includes, in addition to the injection pressure data and the time data, a subject ID, a subject name, a subject sex, a subject age, a test date, a chemical solution Various data such as name, imaging region, injection speed, injection amount, and maximum injection pressure may be acquired.

The exposure determination unit 135 of the data processing device 130 determines the exposure timing from the second radiation data (S107). Specifically, when the second radiation data includes radiation dose data associated with the elapsed time, the exposure determination unit 135 determines that the timing at which radiation of a predetermined threshold value or more is detected is the exposure timing. . For example, when the radiation dose exceeds a predetermined threshold over an elapsed time from 1300 ms to 3800 ms from the start of injection, the exposure determination unit 135 determines that the interval is the exposure timing. That is, the exposure determination unit 135 determines that the exposure start timing is 1300 ms after the start of injection, the exposure end timing is 3800 ms after the start of injection, and the length of the exposure timing is 2500 ms. .

Further, when the second radiation data includes detection timing data associated with the elapsed time, the exposure determination unit 135 determines that the timing at which the radiation is detected is the exposure timing. For example, when radiation is always detected over an elapsed time from 1300 ms to 3800 ms from the start of injection, the exposure determination unit 135 determines that the timing is the exposure timing. That is, the exposure determination unit 135 determines that the exposure start timing is 1300 ms after the start of injection, the exposure end timing is 3800 ms after the start of injection, and the length of the exposure timing is 2500 ms. To do.

The graph creation unit 136 of the data processing device 130 creates the injection result graph by combining the exposure timing obtained by the determination with the injection history data (S108). For example, the exposure determination unit 135 creates an injection result graph by combining the exposure timing with injection pressure data (pressure graph) of the injection history data. As an example, the graph creation unit 136 creates an injection result graph including a pressure graph 170 as shown in FIG. The vertical axis of the pressure graph 170 indicates the injection pressure (kg / cm ² ), and the horizontal axis indicates the elapsed time (s) with the injection start timing of the chemical solution as a reference (zero).

FIG. 5 shows an example in which imaging is performed once, and the first imaging is performed when about 40 seconds have elapsed from the start of injection. In addition, the exposure start timing is shown as a vertical bar 172 extending horizontally with the vertical axis so as to overlap the pressure graph 170. An indicator 173 is shown above the vertical bar 172. The shape of the indicator 173 may be an inverted triangle, a circle, an ellipse, an upward triangle, a rectangle, a polygon, or a star. Further, the exposure start timing may be text indicating time (for example, display such as “0:30”) instead of a figure. Further, the exposure start timing may be displayed by filling a region indicating the exposure time with a predetermined color different from the color arrangement in the injection result graph.

When the injection result graph is created, the graph creation unit 136 stores the injection result graph in the storage unit 132, and the data processing ends. Further, the data processing control unit 131 displays an injection result graph on the display 139 of the personal computer 138. Furthermore, when the personal computer 138 is connected to the external storage device 180, the operator can store the injection result graph in the external storage device 180 as necessary. Further, the data processing device 130 may store the both data in the external storage device 180 after reading the perspective image from the external storage device 180 and associating the perspective image with the injection result graph. The graph creation unit 136 can create an injection result graph using various data formats such as an image data format, a text data format, a CSV (Comma-Separated Value) format, or a DICOM data format.

The injection result graph allows the operator to accurately grasp the imaging start timing based on the injection start. Therefore, the operator can grasp the time from the start of injection until the contrast agent reaches the imaging site by evaluating the fluoroscopic image. In particular, since the arrival time of the contrast agent varies greatly depending on the subject, it is possible to capture an excellent image by grasping the arrival time for each subject. Furthermore, since the injection history data and the exposure timing are displayed in one injection result graph, the operator can confirm the correlation between the actual injection result and the exposure timing for the subject and the fluoroscopic image. Therefore, even if the desired fluoroscopic image is not obtained, the operator can determine the cause (for example, the arrival time of the contrast medium is early).

[program]
A data processing program is installed in the data processing apparatus 130 of the first embodiment. In response to this program, the data processing control unit 131 (computer) executes various types of processing, so that in the data processing control unit 131, the data acquisition unit 134, the exposure determination unit 135, and the graph creation unit 136 have various functions. Logically realized. This program uses a computer to determine the exposure timing from radiation data, a data acquisition unit that acquires injection history data of the drug solution injected into the subject, and radiation data associated with the injection history data and the common time data. It functions as an exposure determination unit and a graph creation unit that creates an injection result graph by combining exposure timing with injection history data. This program can be recorded in a computer-readable internal storage unit or an external recording medium.

According to the first embodiment described above, the injection device 110 can create radiation data associated with time data and transmit it to an external device. Further, the injection device 110 and the data processing device 130 can use the injection history data and the exposure timing based on common time data. Therefore, without acquiring time data from the radiation imaging apparatus 150 or the external storage device 180, the injection apparatus 110 can create second radiation data in which the radiation data is associated with time data common to the injection history data. Thereby, the injection timing graph can be created by synthesizing the exposure timing synchronized with the time data of the injection device 110 with the injection history data. According to this injection result graph, the time from the start of injection to the start of imaging can be visually understood.

In addition, when imaging is performed with a predetermined delay time after the start of injection, the imaging start timing can be set with reference to the injection result graph and fluoroscopic image at the time of previous imaging. Thereby, the imaging start timing can be optimized in accordance with individual differences among subjects. Furthermore, the required amount of contrast agent can be reduced by starting imaging at an appropriate timing. Thereby, the risk and cost of a side effect can be reduced. Moreover, since it is not necessary to perform so-called real prep, the exposure amount can be reduced.

In the injection result graph of FIG. 5, imaging is performed once, but an injection result graph can be similarly created even when imaging is performed a plurality of times (for example, twice) in one inspection. In addition, the data processing device 130 and / or the radiation detection device 190 can be built in the injection device 110 or attached to the injection head 111.

Also, the pressure graph 170 can be created by the graph creation unit 136 of the data processing device 130. In this case, the data acquisition unit 134 acquires injection pressure data associated with the elapsed time from the start of injection as injection history data from the injection device 110. Then, the graph creation unit 136 creates a pressure graph 170 as shown in FIG. 5 based on the acquired injection pressure data. Thereafter, the graph creating unit 136 creates an injection result graph by combining the created pressure graph 170 with the exposure timing obtained by the determination.

Further, the data processing device 130 may perform data processing at a predetermined timing set in advance. For example, the data processing device 130 may receive an injection start signal from the injection device 110 and automatically start data processing at a timing when a predetermined time has elapsed from the start of injection. Further, when the injection history data or the second radiation data is stored in the external storage device 180, the data acquisition unit 134 of the data processing device 130 may acquire the data from the external storage device 180.

[Second Embodiment]
Next, the second embodiment will be described with reference to FIG. 6 showing a data processing system 2000 according to the second embodiment and FIG. 7 which is a block diagram thereof. In the description of the second embodiment, differences from the first embodiment will be described, and description of the components described in the first embodiment will be omitted. Except where specifically described, the constituent elements having the same reference numerals perform substantially the same operations and functions, and the effects thereof are also substantially the same.

The data processing system 2000 includes an injection system 200 and a radiation imaging apparatus 150 that captures a fluoroscopic image of the subject. The injection system 200 includes an injection device 110 that injects a chemical solution, and a radiation detection device 290 that detects radiation and transmits first radiation data to the injection device 110. The radiation detection apparatus 290 of the second embodiment is attached to the bed 153 of the radiation imaging apparatus 150. The radiation imaging apparatus 150, the injection apparatus 110, the external storage apparatus 180, and the data processing apparatus 230 are wired or wirelessly connected via a LAN or a dedicated line, respectively, and can transmit / receive various data to / from each other.

[Radiation detector]
The radiation detection apparatus 290 is wirelessly connected to the injection apparatus 110 in accordance with the Bluetooth (registered trademark) standard, detects the radiation emitted from the radiation imaging apparatus 150, and transmits the radiation data to the injection apparatus 110 as radiation data. Further, the radiation detection device 290 is configured to start detection of radiation when pairing with the injection device 110 is established. The radiation detection apparatus 290 of the second embodiment includes a sensor extending in the longitudinal direction of the bed 153, and the sensor is installed on the bed 153. Thereby, since radiation can be detected in the vicinity of the subject, the exposure amount of the subject can also be detected.

[Data processing device]
The data processing device 230 of the second embodiment is, for example, a workstation (computer) that receives image data of a fluoroscopic image from the radiation imaging device 150. The data processing device 230 is wired or wirelessly connected to the control device 160 of the radiation imaging device 150, the console 120 of the injection device 110, and the external storage device 180. The data processing device 230 acquires injection history data and second radiation data from the injection device 110.

As shown in FIG. 7, the data processing device 230 includes a data processing control unit 231 and a storage unit 232. The data processing control unit 231 includes a data acquisition unit 234 that acquires injection history data and second radiation data from the injection device 110, and a graph creation unit that combines the second radiation data with the injection history data to generate an injection result graph. 236. The graph creation unit 236 stores the created injection result graph in the storage unit 232.

The data processing device 230 has an interface 233 for connecting to the radiation imaging device 150, the injection device 110, and the external storage device 180. This interface may be a separate interface for each device, or may be the same interface. The data processing device 230 includes a display 239 that is controlled by the data processing control unit 231. The display 239 can display a fluoroscopic image of the subject acquired from the radiation imaging apparatus 150. The display 239 can display the injection result graph created by the graph creation unit 236 and the injection history data acquired by the data acquisition unit 234. The data processing device 230 includes a user interface (not shown) that functions as a data input device.

[Data processing]
The data processing of the second embodiment will be described with reference to the flowchart of FIG. First, when the preparation for injection is completed, the operator presses the start button of the injection head 111 to start injection. The injection control unit 121 starts injection according to the operation of the operator, but the radiation detection apparatus 290 of the second embodiment is configured to start detection of radiation when pairing with the injection apparatus 110 is established. . That is, when the radiation detection apparatus 290 is powered on, the radiation detection apparatus 290 issues a pairing request to the injection apparatus 110 (S201). When the injection device 110 responds to the pairing request of the radiation detection device 290 and the pairing is established (YES in S202), the radiation detection device 290 starts detecting radiation (S203).

The radiation detection device 290 detects the radiation and transmits the detected radiation to the injection device 110 as first radiation data (S204). Then, the data creation unit 125 of the injection apparatus 110 creates second radiation data in which the received first radiation data is associated with time data (S205) and stores the second radiation data in the storage unit 122. If pairing is not established (NO in S202), the radiation detection apparatus 290 waits until pairing is established. Further, the radiation detection apparatus 290 may start detection of radiation at a timing when the power of the radiation detection apparatus 290 is turned on instead of the timing when the pairing is established.

The imaging control unit 161 of the radiation imaging apparatus 150 causes the imaging unit 151 to image the imaging region of the subject according to a predetermined imaging plan set in advance. The radiation detection apparatus 290 continues to transmit the first radiation data to the injection apparatus 110, and ends the detection after a predetermined time has elapsed from the start of detection.

The history creation unit 124 of the injection device 110 creates chemical injection history data during chemical injection, after chemical injection, or both. At this time, the history creation unit 124 creates injection history data based on the time data common to the time data of the second radiation data. Then, the history creation unit 124 stores the created injection history data in the storage unit 122 of the injection device 110.

When the imaging is completed, the operator operates the data processing device 230 in order to create an injection result graph. Then, according to the operation of the operator, the data acquisition unit 234 of the data processing device 230 obtains the injection history data of the drug solution injected into the subject and the second radiation data associated with the time data common to the injection history data. Obtained from the injection device 110 (S206).

The graph creation unit 236 of the data processing device 230 creates the injection result graph by combining the second radiation data with the injection history data (S207). Specifically, when the second radiation data includes radiation dose data associated with the elapsed time, the graph creating unit 236 combines the radiation dose data with the injection history data. For example, the graph creation unit 236 shows a graph indicating the radiation dose over the elapsed time from 2300 ms to 3800 ms from the start of injection and the elapsed time from the start of injection, and the injection pressure data (pressure graph) of the injection history data. ).

Also, when the second radiation data includes detection timing data associated with the elapsed time, the graph creating unit 236 combines the detection timing at which the radiation is detected with the injection history data. For example, when radiation is always detected over an elapsed time from 2300 ms to 3800 ms from the start of injection, the graph creating unit 236 combines the detection timing during that time with injection history data. The detection timing can be displayed by painting a vertical bar extending horizontally with the vertical axis of the pressure graph or a region indicating the detection timing with a predetermined color.

In these cases, the injection timing does not include the exposure timing. However, the operator must change the radiation dose that 2300ms after the start of injection is the exposure start timing, 3800ms after the start of injection is the exposure end timing, and the length of the exposure timing is 2500ms. Alternatively, it can be visually understood from the detection timing.

When the injection result graph is created, the graph creation unit 236 stores the injection result graph in the storage unit 232, and the data processing ends. In addition, the data processing control unit 231 of the data processing device 230 displays an injection result graph on the display 239. Further, the operator can store the displayed injection result graph in the external storage device 180 as necessary.

[program]
A data processing program is installed in the data processing device 230 of the second embodiment. When the data processing control unit 231 (computer) executes various processes corresponding to this program, in the data processing control unit 231, the data acquisition unit 234 and the graph creation unit 236 are logically realized as various functions. . This program uses a computer to synthesize the injection history data of the drug solution injected into the subject and the radiation data associated with the injection history data and the time data common to the injection history data. It functions as a graph creation unit that creates an injection result graph. This program can be recorded in a computer-readable internal storage unit or an external recording medium.

According to the second embodiment, the injection device 110 and the data processing device 230 can use the injection history data and the radiation data based on common time data. Therefore, without acquiring time data from the radiation imaging apparatus 150 or the external storage device 180, the injection apparatus 110 can create second radiation data in which the radiation data is associated with time data common to the injection history data. Thereby, the radiation data synchronized with the time data of the injection device 110 can be combined with the injection history data to create an injection result graph. According to this injection result graph, the time from the start of injection to the start of imaging can be visually understood. Moreover, according to the radiation detection apparatus 290 of 2nd Embodiment, since a radiation can be detected in the vicinity of a test subject, the exposure amount of a test subject can also be detected.

As mentioned above, although this invention was demonstrated with reference to each embodiment, this invention is not limited to the said embodiment. Inventions modified within the scope not departing from the present invention and inventions equivalent to the present invention are also included in the present invention. Moreover, each embodiment and each modification can be combined suitably in the range which is not contrary to this invention.

[Deformation]
The injection device 110 may include an injection head 111 or a sub-display provided in the vicinity of the injection head 111. Furthermore, the injection device 110 may display the radiation dose received from the radiation detection devices 190 and 290 on the sub-display during and / or after the examination. Thereby, an operator or a test subject can confirm the radiation dose during a test | inspection and / or after a test | inspection. In this case, the radiation dose may be displayed as a numerical value in a text format or as a graph.

Note that the radiation detection device 190 and the injection head 111 can be configured integrally. Moreover, the injection device 110 and the data processing device 130 can be integrally configured. Furthermore, the personal computer 138 and the data processing device 130 can be configured integrally. Furthermore, the radiation detection apparatus 190 may be configured to start detection of radiation when the power is turned on and end detection of radiation when the power is turned off. In this case, the radiation detection apparatus 190 can transmit the radiation detected after the timing of receiving the detection start command to the injection apparatus 110 as the first radiation data.

Some or all of the above embodiments can be described as in the following supplementary notes, but are not limited thereto.

(Appendix 1)
Detecting radiation emitted from a radiation imaging device that captures a fluoroscopic image;
Send the detected radiation as the first radiation data to the injection device for injecting the chemical,
Create injection history data of the drug solution,
Creating second radiation data associating the first radiation data with time data common to the injection history data;
Determining the exposure timing from the second radiation data;
A data processing method for creating an injection result graph by combining the exposure timing with the injection history data.

(Appendix 2)
Detecting radiation emitted from a radiation imaging device that captures a fluoroscopic image;
Send the detected radiation as the first radiation data to the injection device for injecting the chemical,
Create injection history data of the drug solution,
Creating second radiation data associating the first radiation data with time data common to the injection history data;
A data processing method for creating an injection result graph by combining the second radiation data with the injection history data.

(Appendix 3)
Computer
A data acquisition unit that acquires injection history data of a drug solution injected into a subject, and radiation data associated with time data common to the injection history data;
A data processing program that causes the radiation data to be combined with the injection history data to function as a graph creation unit that creates an injection result graph.

(Appendix 4)
Computer
A data acquisition unit that acquires injection history data of a drug solution injected into a subject, and radiation data associated with time data common to the injection history data;
A data processing program that causes the radiation data to be combined with the injection history data to function as a graph creation unit that creates an injection result graph.

This application claims priority from Japanese Patent Application No. 2016-127741 filed on June 28, 2016, the entire contents of which are incorporated herein by reference.

100: Injection system 110: Injection device 123: Interface 124: History creation unit 125: Data creation unit 130: Data processing unit 134: Data acquisition unit 135: Exposure determination unit 136: Graph creation unit 190: Radiation detection apparatus, 200: Injection system, 234: Data acquisition unit, 236: Graph creation unit

Claims (8)

An injection device for injecting a chemical solution;
A radiation detection device that detects radiation and transmits first radiation data to the injection device;
The injection apparatus includes a history creation unit that creates injection history data of the drug solution, and a data creation unit that creates second radiation data in which the first radiation data is associated with time data common to the injection history data. , Injection system. A data acquisition unit that acquires the injection history data and the second radiation data, an exposure determination unit that determines an exposure timing from the second radiation data, and an injection that combines the exposure timing with the injection history data The injection system according to claim 1, further comprising a data processing device having a graph creation unit that creates a result graph. A data processing apparatus further comprising: a data acquisition unit that acquires the injection history data and the second radiation data; and a graph creation unit that combines the second radiation data with the injection history data to generate an injection result graph. The infusion system of claim 1, comprising: The injection system according to any one of claims 1 to 3, wherein the first radiation data includes at least one of radiation dose data indicating a detected radiation dose and detection timing data indicating a timing at which radiation is detected. . The injection system according to any one of claims 1 to 4, wherein the injection history data includes injection pressure data for each elapsed time from the start of injection of the chemical solution. A data acquisition unit that acquires injection history data of a drug solution injected into a subject, and radiation data associated with time data common to the injection history data;
An exposure determination unit for determining the exposure timing from the radiation data;
A data processing apparatus comprising: a graph creation unit that creates an injection result graph by combining the exposure timing with the injection history data. A data acquisition unit that acquires injection history data of a drug solution injected into a subject, and radiation data associated with time data common to the injection history data;
A data processing apparatus comprising: a graph creation unit that creates an injection result graph by combining the radiation data with the injection history data. An injection device for injecting a chemical solution,
An interface for receiving first radiation data from the radiation detector;
A data creation unit for creating second radiation data in which the first radiation data is associated with time data;
The interface is an injection device that transmits the second radiation data to an external device.

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