WO2017051944A1 - 의료 영상 판독 과정에서 사용자의 시선 정보를 이용한 판독 효율 증대 방법 및 그 장치 - Google Patents
의료 영상 판독 과정에서 사용자의 시선 정보를 이용한 판독 효율 증대 방법 및 그 장치 Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
Definitions
- the present invention relates to a method and apparatus for providing a service helpful for reading in order to increase the efficiency of medical image reading.
- Imaging devices such as computer tomography (CT) and magnetic resonance imaging (MRI) have become essential equipment in modern medicine.
- CT computer tomography
- MRI magnetic resonance imaging
- the role of clinical diagnosis using imaging equipment is expected to play an increasing role.
- the reader observes the image while adjusting the brightness region displayed on the screen during the reading of the image.
- a three-dimensional shape is important, but it cannot be determined by only one slice, and the reading physician judges by repeatedly moving and observing several adjacent slices. For example, a nodule in the lung cannot be easily distinguished from a blood vessel and a nodule by only one slice, and the adjacent slice must be repeatedly observed.
- An object of the present invention is to increase the reading efficiency of a medical image by tracking the gaze of the reader when the medical image is read and estimating a region that the reader is interested in.
- a method of increasing medical image reading efficiency may include receiving gaze information of a user acquired by using a gaze tracking device in a medical image reading process, and determining an ROI of a medical image by using gaze information.
- the method may include determining a type of a service corresponding to the ROI, and providing the determined service.
- the determining of the ROI of the user may include generating ROI information based on a change in the gaze of the user's gaze information and a fixed time of the gaze.
- the determining of the region of interest of the user may include analyzing a change in the gaze information of the user and inferring a suspected disease caused by the change in the gaze information.
- the providing of the determined service may include providing quantitative information to help the reading or diagnosis of the suspected disease.
- the determining of the service type may include searching for a brightness level and a section required to maximize readability of the ROI.
- the determining of the service type may include generating 3D information of the tissue or the lesion when the ROI is the tissue or the lesion.
- the determining of the service type may include generating quantification information of the tissue or the lesion when the ROI is the tissue or the lesion.
- the determining of the service type may include generating change information over time of the lesion or disease when the lesion or disease is observed in the ROI.
- the medical image reading apparatus may determine a region of interest of the user for the medical image based on a line of sight tracking unit that tracks the line of sight of the user in a medical image reading process, and the tracked line of sight of the user and corresponds to the region of interest. It may include a service determination unit for determining the type of service and a service provider for providing the determined service.
- the service determination unit may generate the ROI information based on the change of the gaze of the user and the fixed time of the gaze.
- the service determination unit may analyze a change in the gaze of the user and infer a suspected disease according to the change in the gaze.
- the service provider may provide quantitative information to assist in reading or diagnosing a suspected disease.
- the service determination unit may search for a brightness level and a section necessary to maximize readability of the ROI.
- the service determination unit may generate 3D information of the tissue or the lesion.
- the service determination unit may generate quantification information of the tissue or the lesion.
- the service determination unit may generate change information over time of the lesion or disease.
- the reader can read more quickly and accurately with respect to the region of interest that the reader is looking at when reading the medical image.
- the progress of the lesion may be easily analyzed through comparison with a past medical image of the patient.
- FIG. 1 is a block diagram illustrating a medical image reading apparatus according to an embodiment.
- FIG. 2 is a flowchart illustrating a method of increasing medical image reading efficiency according to an embodiment.
- FIG. 3 is a flowchart illustrating a method of providing a determined service according to an embodiment.
- FIG. 4 is a diagram for describing a method of tracking a gaze of a reader by a medical image reading apparatus, according to an exemplary embodiment.
- FIG. 5 is a diagram for describing a method of maximizing readability of an ROI based on gaze tracking of a user, according to an exemplary embodiment.
- FIGS. 6 and 7 are diagrams for describing a method of providing additional information related to an ROI based on eye gaze tracking of a user, according to an exemplary embodiment.
- FIGS. 8 and 9 are diagrams for describing a method of providing disease related information related to an ROI based on eye gaze tracking of a user, according to an exemplary embodiment.
- FIG. 1 is a block diagram illustrating a medical image reading apparatus according to an embodiment.
- the medical image reading apparatus 100 may include a gaze tracking unit 110, a service determining unit 120, and a service providing unit 130.
- the medical image reading apparatus 100 specifies the region of interest by using the gaze information of the user or the reader, and provides an additional service to help the reading of the medical image. Reading efficiency can be increased.
- the gaze tracking unit 110 may track the gaze of the user to which part of the displayed medical image the user is looking.
- the eye tracking unit may use a conventional eye tracking technique.
- the gaze tracking unit 110 may track a position viewed by the user in the medical image displayed in the display (monitor). At this time, the gaze tracking unit 110 may track a position that the user looks at by using a camera that photographs the pupil movement of the user.
- the gaze tracking unit 110 may receive gaze information of the user from a separate gaze tracking device.
- the gaze tracking unit may serve as a wired or wireless communication unit, and may determine which part of the medical image is displayed by using the received gaze information.
- the service determiner 120 may determine a region of interest of the user for the medical image based on the gaze information of the user.
- the gaze information may include gaze information of the user tracked by the gaze tracking unit or gaze information received by the gaze tracking unit.
- the service determination unit 120 may generate the ROI information based on a change in the gaze of the user and a fixed time of the gaze. For example, the service determination unit 120 may extract a region of interest (ROI) that the user is interested in for a specific time by using the user's gaze change.
- ROI region of interest
- the service determination unit 120 may infer the suspected disease according to the change in the gaze by analyzing the change in the gaze of the user. For example, if the patient is a lung image of the medical image, and there is a tumor in the region of interest that the user watches, the service determination unit may infer the cancer as a suspected disease.
- the service determination unit 120 may determine the type of service corresponding to the ROI of the user. In this case, the service determination unit 120 may predict the type of service currently required by the user.
- the service determination unit 120 may determine which section the user or the reader is in charge of. In addition, the service determination unit 120 may determine which image is the medical image being displayed. That is, it is possible to determine whether the medical image being displayed is a 2D image or a 3D image, and may determine whether the medical image is an X ray, CT, or MRI image.
- the service determination unit 120 may determine what the user or the reader is reading and what should be provided. For example, the service determination unit 120 may determine whether to provide a segment of the ROI to the user, provide a 3D image, or provide a similar image of another patient.
- the service determiner 120 may provide a segment of the tumor as a 3D image when the region of interest of the displayed medical image corresponds to the tumor.
- the service determiner 120 may provide an image of a surgical procedure of another patient who is injured in a similar area when the ROI of the displayed medical image indicates fracture of the bone.
- the service determiner 120 may search whether the brightness level and the interval necessary to increase the read efficiency of the ROI are provided. If the brightness level required for the ROI is not provided, the corrected brightness value may be provided through the service provider.
- the service determination unit 120 may include a segmentation module that extracts and enlarges a region of interest of the user.
- the segmentation module may extract the tissues not only in the current slice but also in a plurality of adjacent slices for the tissues existing in the region of interest that the user watches.
- the region of interest currently being observed is a blood vessel
- the blood vessel may be extracted from up and down n slices.
- an area within all slices including a spherical nodule may be extracted.
- the segmentation module may generate a 3D model by enlarging the ROI of the user. For example, an image cropped by each segment of adjacent slices of the ROI may be simultaneously provided.
- the model may be provided by reconstructing the regions in three dimensions.
- the 3D information may be provided in a specific area of the screen, or may be provided by floating near a tissue under observation in the medical image.
- the segmentation module may generate quantification information of interests (vessels, nodules, tumors, etc.) existing in the ROI of the user.
- the segmentation module may extract only the interests existing in the ROI of the user, remove the remaining portions, and provide only the interests as images.
- the service determination unit 120 may generate quantification information of the tissue or the lesion.
- the progress of the lesion or disease may be estimated by comparing with the past history of the region of interest.
- the service determiner 120 may generate change information according to the time of the lesion or the disease. More specifically, when a tumor is observed in the ROI, the service determination unit 120 may search the past history to generate a 3D model or a change in quantitative data on the past tumor size of the same patient.
- the service provider 130 may provide the determined service to the user.
- the service provider 130 may include a brightness adjusting module that adjusts the brightness section and the level of the image in order to increase the readability of the ROI. For example, if the user is looking at the lung image of the patient can be provided by adjusting the HU value for analysis of the lung image.
- the service provider 130 may provide quantitative information to help the suspected disease or diagnosis estimated by the service determination unit 120.
- the service provider 130 may provide additional information to the medical image to be observed through the user interface.
- FIG. 2 is a flowchart illustrating a method of increasing medical image reading efficiency according to an embodiment.
- the medical image reading apparatus may receive the gaze information of the user acquired in the medical image reading process.
- the medical image reading apparatus may collect eye gaze information of the user by tracking the pupil movement of the user reading the medical image.
- the medical image reading apparatus may determine a region of interest of the user for the medical image.
- the ROI information may be generated based on the movement change of the gaze and the fixed time of the gaze among the gaze information of the user.
- step 220 may analyze the change in the gaze movement of the user and infer a suspected disease according to the change in the gaze movement. If the user is fixed to the gaze of the tumor portion of the medical image, the cancer may be inferred as a suspected disease.
- the medical image reading apparatus may determine the type of service corresponding to the ROI.
- the medical image reading apparatus may search for a brightness level and a section necessary to maximize readability.
- the medical image reading apparatus may generate quantification information of the tissue or the lesion when the ROI is the tissue or the lesion.
- the medical image reading apparatus may generate change information over time of the lesion or the disease.
- the medical image reading apparatus may provide the determined service to the reader of the medical image.
- the medical image reading apparatus may set and provide a brightness level and a section necessary to maximize readability of the ROI.
- the medical image reading apparatus may provide the user with quantitative information to assist in reading or diagnosing a suspected disease.
- FIG. 3 is a flowchart illustrating a method of providing a determined service according to an embodiment.
- the medical image reading apparatus may correct the displayed medical image.
- the brightness value of the image may be corrected and provided to facilitate observation of the ROI that the user is looking at.
- the medical image reading apparatus may segment the ROI.
- segmentation means to cut out and enlarge a portion corresponding to the ROI of the image.
- the medical image reading apparatus may provide additional information to help observe the segmented ROI.
- the medical image reading apparatus may provide 3D information about the ROI. For example, if you are looking for a lung tumor, you can render and provide a three-dimensional model for the lung tumor.
- the medical image reading apparatus may provide quantification information about the ROI. For example, if the growth plate is being examined in bone, the bone age and the value of each major site may be indicated and provided.
- additional information may be provided to help specify the type of region of interest.
- the size or volume of the region of interest may be measured to provide quantified information.
- the medical image reading apparatus may collect and analyze relevant information in the ROI.
- the collection of related information may be historical histories of the photographer or the patient. For example, when a patient or a photographed person photographs a medical image of the same region in the past, quantitative information and segment information related to a portion corresponding to the ROI may be collected and analyzed.
- the medical image reading apparatus may determine a suspected disease related to the ROI.
- the medical image reading apparatus may provide the user with respect to the suspected disease by using the information related to the collected ROI, and may give reliability to the suspected disease.
- the medical image reading apparatus may provide quantification information related to the suspected disease.
- the apparatus for reading a medical image may provide information on change over time by searching a past history about a progression of a suspected disease in the ROI. That is, since the tumor size of the patient is x and the current tumor size is y, it may be provided to the user by predicting how the disease is progressing and how the disease will progress in the future.
- the medical image reading apparatus may search for and provide an image of another patient in a similar state.
- the medical image reading apparatus may automatically track and display the most changeable part.
- FIG. 4 is a diagram for describing a method of tracking a gaze of a reader by a medical image reading apparatus, according to an exemplary embodiment.
- a situation in which a user 410 reads a medical image through a display device 420 that provides a medical image is disclosed.
- the gaze analysis process of the user 410 may first determine what is the target image displayed on the display apparatus 420. First, it may be determined whether the target image is a lung image, an eye image, or a brain image.
- the gaze tracking unit 430 of the medical image reading apparatus may sense the pupil 411 of the user 410 to track the gaze of the user. For example, in FIG. 4, the eye tracking unit 430 may sense that the user watches the center portion 421 of the object displayed on the right side of the medical image.
- the tracked gaze of the user may be mapped to the medical image.
- the gaze tracking unit 430 of the medical image reading apparatus may extract a region of interest that the user watches through a series of processes.
- FIG. 5 is a diagram for describing a method of maximizing readability of an ROI based on gaze tracking of a user, according to an exemplary embodiment.
- the user 510 may check a situation in which the user 510 watches the medical image provided through the display 520 of the medical image reading apparatus.
- the medical image reading apparatus may check where the user is looking at the medical image 521 displayed on the display 520.
- Techniques for gaze tracking may use various conventional gaze tracking techniques.
- CT images and X-ray images appear black as X-rays transmit well, and white as X-rays pass poorly. That is, in the medical image 521, the bones or organs appear white, and the areas that are well transmitted appear dark.
- the image displayed on the display 520 may be a human lung image.
- the brightness value of the image is changed according to the characteristics of the tissue or the subject to be observed, and the reader or the user observes the image while adjusting the brightness value of the image displayed on the screen during the reading of the medical image. If the part that the user 510 gazes on in the lung image 521 corresponds to the periphery of the lung, the image reading apparatus according to the embodiment may determine the brightness level and the brightness expression section of the displayed image to read the periphery of the lung. By correcting accordingly, the closed image 522 whose brightness value is corrected may be displayed.
- FIGS. 6 and 7 are diagrams for describing a method of providing additional information related to an ROI based on eye gaze tracking of a user, according to an exemplary embodiment.
- the user 610 may check a situation in which the user 610 watches the medical image 631 provided through the display 630 of the medical image reading apparatus.
- the gaze tracking device 620 may track the movement of the pupil of the user 610 to detect that the user is observing a specific portion 632 of the medical image 631.
- the gaze tracking device may include a gaze tracking device according to various conventional methods.
- the image displayed on the display 630 may be a human lung image. If a lesion occurs in a portion 632 that the user 610 watches in the lung image 631, the image reading apparatus may provide additional information 633.
- the additional information 633 may include segment information 710 in adjacent slice images of the ROI.
- the additional information 633 may include a 3D model 720 that models a segment region of the ROI.
- the additional information 633 may include quantitative analysis information 730 of the ROI.
- the patient's condition is diagnosed by analyzing the tumor size according to the subjective judgment of the reader.
- the image reading apparatus according to the embodiment quantifies and provides a size of a tumor occurring in a region of interest of a patient, more accurate determination of lesions and diseases is possible.
- FIGS. 8 and 9 are diagrams for describing a method of providing disease related information related to an ROI based on eye gaze tracking of a user, according to an exemplary embodiment.
- the user 810 may identify a situation in which the user 810 watches the medical image 831 provided through the display 830 of the medical image reading apparatus.
- the gaze tracking device 820 may track movement of the pupil of the user 810 to detect that the specific parts 832 of the medical image 831 are being observed.
- the gaze tracking device may include a gaze tracking device according to various conventional methods.
- the image displayed on the display 830 may be a human lung image. If the user 810 has an abnormality in the portion 832 that the user 810 watches in the lung image 831, the image reading apparatus may provide the suspected disease diagnosis information 833.
- the suspected disease diagnosis information 833 may include state change information over time of the corresponding patient.
- the suspected disease diagnosis information may include quantitative analysis information corresponding to the suspected disease.
- the image reading apparatus may analyze the existing photographing information of the corresponding patient, and provide quantitative analysis information over time.
- the state change information may include size change information 910 over time of the ROI.
- the state change information may include a graph of tumor size change over time.
- the state change information may include information that can be obtained from the entire image as well as the slice currently being observed, and may also include medical image information of the patient in the past and image information of another patient having the same symptoms.
- the state change information may include property change information 920 over time of the ROI.
- the state change information may include a graph of the rate of change of the overall variation and type of variation in lung tissue over time upon reading Diffuse Interstitial Lung Disease (DILD). Can be.
- DILD Diffuse Interstitial Lung Disease
- the method according to the embodiment may be embodied in the form of program instructions that can be executed by various computer means and recorded in a computer readable medium.
- the computer readable medium may include program instructions, data files, data structures, etc. alone or in combination.
- the program instructions recorded on the media may be those specially designed and constructed for the purposes of the embodiments, or they may be of the kind well-known and available to those having skill in the computer software arts.
- Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks.
- Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like.
- the hardware device described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.
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Abstract
Description
Claims (17)
- 의료 영상 판독 과정에서 시선 추적 장치를 이용하여 획득한 사용자의 시선 정보를 수신하는 단계;상기 시선 정보를 이용하여 의료 영상에 대한 상기 사용자의 관심 영역을 판단하는 단계;상기 관심 영역에 대응하는 서비스의 유형을 판별하는 단계; 및판별된 서비스를 제공하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 사용자의 관심 영역을 판단하는 단계는,상기 사용자의 시선 정보에서 시선의 변화 및 시선의 고정 시간에 기초하여 관심 영역 정보를 생성하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 사용자의 관심 영역을 판단하는 단계는,상기 사용자의 시선 정보의 변화를 분석하는 단계; 및상기 시선 정보의 변화에 따른 의심 질환을 유추하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제3항에 있어서,상기 판별된 서비스를 제공하는 단계는,상기 의심 질환의 판독 또는 진단에 도움이 되는 정량적 정보를 제공하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 서비스 유형을 판별하는 단계는,상기 관심 영역의 가독성을 극대화 하기 위해 필요한 밝기 레벨 및 구간을 탐색하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 서비스 유형을 판별하는 단계는,상기 관심 영역이 조직 또는 병변인 경우, 상기 조직 또는 병변의 3차원 정보를 생성하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 서비스 유형을 판별하는 단계는,상기 관심 영역이 조직 또는 병변인 경우, 상기 조직 또는 병변의 정량화 정보를 생성하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 제1항에 있어서,상기 서비스 유형을 판별하는 단계는,상기 관심 영역에서 병변 또는 질환이 관찰되는 경우, 상기 병변 또는 질환의 시간에 따른 변화 정보를 생성하는 단계를 포함하는 의료 영상 판독 효율 증대 방법.
- 하드웨어와 결합되어 제1항 내지 제8항 중 어느 한 항의 방법을 실행시키기 위하여 매체에 저장된 컴퓨터 프로그램.
- 의료 영상 판독 장치에 있어서,의료 영상 판독 과정에서 사용자의 시선을 추적하는 시선 추적부;상기 추적된 사용자의 시선에 기초하여 의료 영상에 대한 상기 사용자의 관심 영역을 판단하고, 상기 관심 영역에 대응하는 서비스의 유형을 판별하는 서비스 판별부; 및판별된 서비스를 제공하는 서비스 제공부를 포함하는 의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 사용자의 시선의 변화 및 시선의 고정 시간에 기초하여 관심 영역 정보를 생성하는의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 사용자의 시선의 변화를 분석하고, 상기 시선의 변화에 따른 의심 질환을 유추하는를 포함하는 의료 영상 판독 장치.
- 제12항에 있어서,상기 서비스 제공부는,상기 의심 질환의 판독 또는 진단에 도움이 되는 정량적 정보를 제공하는의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 관심 영역의 가독성을 극대화 하기 위해 필요한 밝기 레벨 및 구간을 탐색하는의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 관심 영역이 조직 또는 병변인 경우, 상기 조직 또는 병변의 3차원 정보를 생성하는의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 관심 영역이 조직 또는 병변인 경우, 상기 조직 또는 병변의 정량화 정보를 생성하는의료 영상 판독 장치.
- 제10항에 있어서,상기 서비스 판별부는,상기 관심 영역에서 병변 또는 질환이 관찰되는 경우, 상기 병변 또는 질환의 시간에 따른 변화 정보를 생성하는의료 영상 판독 장치.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020167020457A KR101840350B1 (ko) | 2015-09-24 | 2015-09-24 | 의료 영상 판독 과정에서 사용자의 시선 정보를 이용한 판독 효율 증대 방법 및 그 장치 |
| US15/760,803 US10769779B2 (en) | 2015-09-24 | 2015-09-24 | Method for increasing reading efficiency in medical image reading process using gaze information of user and apparatus using the same |
| PCT/KR2015/010089 WO2017051944A1 (ko) | 2015-09-24 | 2015-09-24 | 의료 영상 판독 과정에서 사용자의 시선 정보를 이용한 판독 효율 증대 방법 및 그 장치 |
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/KR2015/010089 WO2017051944A1 (ko) | 2015-09-24 | 2015-09-24 | 의료 영상 판독 과정에서 사용자의 시선 정보를 이용한 판독 효율 증대 방법 및 그 장치 |
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| WO2017051944A1 true WO2017051944A1 (ko) | 2017-03-30 |
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| US (1) | US10769779B2 (ko) |
| KR (1) | KR101840350B1 (ko) |
| WO (1) | WO2017051944A1 (ko) |
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| WO2019098399A1 (ko) * | 2017-11-15 | 2019-05-23 | 주식회사 뷰노 | 골밀도 추정 방법 및 이를 이용한 장치 |
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| US20210383903A1 (en) * | 2020-06-09 | 2021-12-09 | Providence St. Joseph Health | Provider-curated applications for accessing patient data in an ehr system |
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| Publication number | Publication date |
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| KR101840350B1 (ko) | 2018-03-20 |
| US20190340751A1 (en) | 2019-11-07 |
| US10769779B2 (en) | 2020-09-08 |
| KR20170046105A (ko) | 2017-04-28 |
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