公开(公告)号：US12171528B2

公开(公告)日：2024-12-24

申请号：US17628394

申请日：2020-02-19

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie Sugiyama

IPC: A61B5/00 ,  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：US12274573B2

公开(公告)日：2025-04-15

申请号：US18008334

申请日：2021-08-19

Applicant: OSAKA UNIVERSITY

Inventor： Yoshie Sugiyama

IPC: A61B6/50 ,  G06T7/00 ,  G06T7/62

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.