US-12620089-B2 - Information processing device, information processing method, and program

Abstract

An information processing device, an information processing method, and a non-transitory computer-readable medium are disclosed. The information processing device includes a processor configured to acquire transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient, and calculate plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted, and a display unit configured to display a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel.

Inventors

• Yuki SAKAGUCHI

Assignees

• TERUMO KABUSHIKI KAISHA

Dates

Publication Date

20260505

Application Date

20230329

Priority Date

20200929

Claims (20)

1. 1 . An information processing device comprising: a processor configured to: acquire transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient; and calculate plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted, the calculated plaque burden in each of the frames being an area ratio of plaque to a transverse cross section of the blood vessel; and a display unit configured to display a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the calculated plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel.
2. 2 . The information processing device according to claim 1 , wherein the first object is a gradation bar in which a display color is gradually changed according to the magnitude of the calculated plaque burden.
3. 3 . The information processing device according to claim 2 , wherein the display unit is configured to display the gradation bar in which the display color is different between a region in which the calculated plaque burden is equal to or greater than a predetermined threshold and a region in which the calculated plaque burden is less than the predetermined threshold.
4. 4 . The information processing device according to claim 3 , wherein the processor is configured to: receive a setting input for changing the predetermined threshold; and display the gradation bar in which the display color is changed according to the set threshold.
5. 5 . The information processing device according to claim 1 , wherein the processor is configured to: calculate the calculated plaque burden in each of the frames and a reliability indicating certainty of a calculation result of the calculated plaque burden in each of the frames; and identify a low reliability region in which the reliability is equal to or less than a predetermined value in the longitudinal tomographic image; and the display unit is configured to hide a part of the first object corresponding to the low reliability region.
6. 6 . The information processing device according to claim 1 , wherein the processor is configured to measure a length, in the axial direction, of the region in which the calculated plaque burden is equal to or greater than the predetermined threshold; and the display unit is configured to display the measured length in correlation with the region equal to or greater than the predetermined threshold in the longitudinal tomographic image.
7. 7 . The information processing device according to claim 1 , wherein the display unit is configured to display a second object representing a size of a predetermined treatment device in correlation with the longitudinal tomographic image.
8. 8 . An information processing method in which a computer executes processing comprising: acquiring transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient; calculating plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted, the calculated plaque burden in each of the frames being an area ratio of plaque to a transverse cross section of the blood vessel; and displaying, on a display unit, a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the calculated plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel.
9. 9 . The information processing method according to claim 8 , wherein the first object is a gradation bar, the method further comprises: changing a display color according to the magnitude of the calculated plaque burden.
10. 10 . The information processing method according to claim 9 , further comprising: displaying, on the display unit, the gradation bar in which the display color is different between a region in which the calculated plaque burden is equal to or greater than a predetermined threshold and a region in which the calculated plaque burden is less than the predetermined threshold.
11. 11 . The information processing method according to claim 10 , further comprising receiving a setting input for changing the predetermined threshold; and changing the gradation bar in which the display color according to the set threshold.
12. 12 . The information processing method according to claim 8 , further comprising: calculating the calculated plaque burden in each of the frames and a reliability indicating certainty of a calculation result of the calculated plaque burden in each of the frames; identifying a low reliability region in which the reliability is equal to or less than a predetermined value in the longitudinal tomographic image; and hiding a part of the first object corresponding to the low reliability region.
13. 13 . The information processing method according to claim 8 , further comprising: measuring a length, in the axial direction, of the region in which the calculated plaque burden is equal to or greater than the predetermined threshold; and displaying the measured length in correlation with the region equal to or greater than the predetermined threshold in the longitudinal tomographic image.
14. 14 . The information processing method according to claim 8 , further comprising: displaying a second object representing a size of a predetermined treatment device in correlation with the longitudinal tomographic image.
15. 15 . A non-transitory computer-readable medium storing a program, which when executed by a computer, preforms processing comprising: acquiring transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient; calculating plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted, the calculated plaque burden in each of the frames being an area ratio of plaque to a transverse cross section of the blood vessel; and displaying, on a display unit, a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the calculated plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel.
16. 16 . The computer-readable medium according to claim 15 , wherein the first object is a gradation bar, further comprising changing a display color according to the magnitude of the calculated plaque burden; and displaying, on the display unit, the gradation bar in which the display color is different between a region in which the calculated plaque burden is equal to or greater than a predetermined threshold and a region in which the calculated plaque burden is less than the predetermined threshold.
17. 17 . The computer-readable medium according to claim 15 , further comprising receiving a setting input for changing the threshold; and changing the gradation bar in which the display color according to the set threshold.
18. 18 . The computer-readable medium according to claim 15 , further comprising: calculating the calculated plaque burden in each of the frames and a reliability indicating certainty of a calculation result of the calculated plaque burden in each of the frames; identifying a low reliability region in which the reliability is equal to or less than a predetermined value in the longitudinal tomographic image; and hiding a part of the first object corresponding to the low reliability region.
19. 19 . The computer-readable medium according to claim 15 , further comprising: measuring a length, in the axial direction, of the region in which the calculated plaque burden is equal to or greater than the predetermined threshold; and displaying the measured length in correlation with the region equal to or greater than the predetermined threshold in the longitudinal tomographic image.
20. 20 . The computer-readable medium according to claim 15 , further comprising: displaying a second object representing a size of a predetermined treatment device in correlation with the longitudinal tomographic image.

Description

CROSS-REFERENCES TO RELATED APPLICATIONS This application is a continuation of International Application No. PCT/JP2021/035112 filed on Sep. 24, 2021, which claims priority to Japanese Application No. 2020-163913 filed on Sep. 29, 2020, the entire content of both of which is incorporated herein by reference. TECHNOLOGICAL FIELD The present disclosure generally relates to an information processing device, an information processing method, and a program. BACKGROUND DISCUSSION A technology has been used to support diagnostic imaging related to vascular treatment such as percutaneous coronary intervention (PCI). For example, Japanese Patent Publication No. 2012-176282 A discloses a medical image processing device for converting three-dimensional computer tomography (CT) data to a two-dimensional projection image, and the medical image processing device extracts a plaque region of a blood vessel from the three-dimensional CT data, calculates a stenosis rate of the blood vessel, and displays a projection image in which a color value of the plaque region is set according to the calculated stenosis rate or the like. Japanese Patent Publication No. 2012-176282 A, however, relates to rule-based extraction of a plaque region from the three-dimensional CT value, and does not always extract a plaque region with relatively high accuracy to calculate a stenosis rate. Further, Japanese Patent Publication No. 2012-176282 A involves three-dimensional CT data and does not calculate a stenosis rate and the like based on two-dimensional data (image). SUMMARY An information processing device is disclosed that is capable of supporting diagnostic imaging related to vascular treatment suitably. An information processing device according to one aspect includes a processor configured to: acquire transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient, and calculate plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted; and a display unit configured to display a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel. An information processing method according another aspect in which a computer executes processing comprising: acquiring transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient; calculating plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted; and displaying, on a display unit, a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel. A non-transitory computer-readable medium storing a program according to a further aspect, which when executed by a computer, preforms processing comprising: acquiring transverse tomographic images of a plurality of frames obtained by imaging a blood vessel of a patient; calculating plaque burden in each of the frames by inputting the acquired transverse tomographic image of each of the frames to a model that has learned to calculate plaque burden in response to the transverse tomographic image inputted; and displaying, on a display unit, a longitudinal tomographic image based on the transverse tomographic images of the plurality of frames and a first object that is an object displayed in correlation with the longitudinal tomographic image and represents magnitude of the plaque burden at each position of the longitudinal tomographic images along an axial direction of the blood vessel. According to one aspect, it is possible to suitably support diagnostic imaging related to vascular treatment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram illustrating a configuration example of a diagnostic imaging system. FIG. 2 is a block diagram illustrating a configuration example of a server. FIG. 3 is a block diagram illustrating a configuration example of a diagnostic imaging device. FIG. 4 is an explanatory diagram related to calculation processing of plaque burden. FIG. 5 is an explanatory diagram illustrating a display example of plaque burden. FIG. 6 is an explanatory diagram illustrating another display example of plaque burden. FIG. 7 is an explanatory diagram related t