公开(公告)号：US20240404056A1

公开(公告)日：2024-12-05

申请号：US18696454

申请日：2022-10-07

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie SUGIYAMA

IPC: G06T7/00 ,  G06T7/62

Abstract: A wall thickness estimation method includes: obtaining behavioral information that is based on a video in which an organ wall or a blood vessel wall is captured using four-dimensional angiography, the behavioral information being numerical information about changes over time in a position of each of a plurality of predetermined points in the organ wall or the blood vessel wall; generating estimation information using a model trained to take as an input an image indicating a physical parameter based on the behavioral information obtained in the obtaining and output an index indicating a thickness at each of the plurality of predetermined points in the organ wall or the blood vessel wall, the estimation information being information visualizing the thickness; and outputting the estimation information generated in the generating.

公开(公告)号：US20220280049A1

公开(公告)日：2022-09-08

申请号：US17628394

申请日：2020-02-19

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie SUGIYAMA

IPC: A61B5/02 ,  A61B5/055 ,  G06T7/00

Abstract: A blood vessel wall thickness estimation method includes: obtaining behavioral information, which is numerical information about changes over time in positions of a plurality of predetermined points in a blood vessel wall, based on a video including the blood vessel wall obtained using four-dimensional angiography; generating estimation information for estimating a thickness of the blood vessel wall based on the behavioral information obtained in the obtaining; and outputting the estimation information generated in the generating. The estimation information is information in which at least one of the following is visualized: a change in displacement over time; a change in speed over time; a change in acceleration over time; a change in kinetic energy over time; a spring constant obtained from the displacement and the acceleration, and a Fourier coefficient obtained from the change in the displacement over time.

公开(公告)号：US20240225577A1

公开(公告)日：2024-07-11

申请号：US18008334

申请日：2021-08-19

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie SUGIYAMA

IPC: A61B6/50 ,  G06T7/00

CPC classification number: A61B6/504 ,  A61B6/501 ,  G06T7/0016 ,  G06T2207/10016 ,  G06T2207/30101

Abstract: A wall thickness estimation method includes: obtaining behavioral information based on a video in which an organ wall or a blood vessel wall is captured using four-dimensional angiography, the behavioral information being numerical information about changes over time in a position of each of a plurality of predetermined points in the organ wall or the blood vessel wall; generating, based on the behavioral information obtained in the obtaining, estimation information that visualizes mass of each of the plurality of predetermined points for estimating a thickness of the organ wall or a thickness of the blood vessel wall; and outputting the estimation information generated in the generating.

公开(公告)号：US20240081767A1

公开(公告)日：2024-03-14

申请号：US18271977

申请日：2022-02-18

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie SUGIYAMA

IPC: A61B6/00

CPC classification number: A61B6/5217 ,  A61B6/504 ,  A61B5/055

Abstract: A wall thickness estimation method includes: obtaining behavioral information based on a video in which an organ wall or a blood vessel wall is captured using four-dimensional angiography, the behavioral information being numerical information about changes over time in a position of each of a plurality of predetermined points in the organ wall or the blood vessel wall; generating, based on the behavioral information obtained in the obtaining, estimation information that visualizes a strain of each of the plurality of predetermined points for estimating a thickness of the organ wall or a thickness of the blood vessel wall; and outputting the estimation information generated in the generating.