ANGIOGRAPHY IMAGE ANALYSIS METHOD AND APPARATUS

Title:

ANGIOGRAPHY IMAGE ANALYSIS METHOD AND APPARATUS

Document Type and Number:

WIPO Patent Application WO/2023/130664

Kind Code:

A1

Abstract:

The embodiments of the present invention relate to an angiography image analysis method and apparatus. The method comprises: acquiring an angiography image; carrying out blood vessel stenosis part detection, and taking a detected stenosis part sub-image as a first image; performing binarization and image noise reduction to generate a first binary image; performing blood vessel recognition to generate a blood vessel image; while not changing the topological property of the blood vessel image, performing center line extraction on the blood vessel image of the first binary image so as to generate a first center line; sorting pixel points on the first center line to generate a first pixel point sequence; measuring and calculating the blood vessel diameter at each first pixel point position so as to generate a first diameter; identifying the percentage of stenosis of a blood vessel at each first pixel point position so as to generate a corresponding first percentage of stenosis; and returning the first pixel point sequence, a first diameter sequence and a sequence of the first percentages of stenosis as vascular stenosis analysis data of the angiography image. The present invention can improve the analysis accuracy.

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Inventors:

WU ZEJIAN (CN)
ZHANG BIYING (CN)
CAO JUN (CN)

Application Number:

PCT/CN2022/097246

Publication Date:

July 13, 2023

Filing Date:

June 07, 2022

Export Citation:

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Assignee:

LEPU MED TECH BEIJING CO LTD (CN)

International Classes:

G06T7/00

Foreign References:

CN114418976A	2022-04-29
CN110490040A	2019-11-22
CN112037170A	2020-12-04
US20190029625A1	2019-01-31

Attorney, Agent or Firm:

HECHWISE PATENT & TRADEMARK FIRM (CN)

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