Method for detecting guidewire-free FFR, guidewire-free IMR and guidewire-free CFR

A detection method and guide wire technology, which can be used in cardiac catheterization, blood pressure measurement devices, and radiological diagnostic equipment, etc., can solve the problems of non-invasive detection of FFR/IMR/CFR, and achieve real-time 3D blood vessel analysis, high efficiency, good accuracy effect

Active Publication Date: 2021-06-29
BEIJING ESCOPE TECH CO LTD
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Problems solved by technology

[0004] The main purpose of this application is to provide a detection method, device, computer-readable storage medium and processor for wire-free FFR, wire-less IMR, and

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  • Method for detecting guidewire-free FFR, guidewire-free IMR and guidewire-free CFR
  • Method for detecting guidewire-free FFR, guidewire-free IMR and guidewire-free CFR
  • Method for detecting guidewire-free FFR, guidewire-free IMR and guidewire-free CFR

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[0027]It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0028] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0029] It should be noted that the terms "first" and "second"...

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Abstract

The invention provides a method for detecting guidewire-free FFR, guidewire-free IMR and guidewire-free CFR. The method comprises the following steps: acquiring a 2D coronary DSA image of a blood vessel to be measured; extracting a 2D target blood vessel from the 2D coronary DSA image; reconstructing a 3D blood vessel model according to the 2D target blood vessel; calculating the guidewire-free CFR according to the 3D blood vessel model; acquiring the central arterial pressure of the blood vessel to be measured by using a non-invasive measurement method; determining the inlet pressure of the blood vessel to be measured according to the central arterial pressure; according to the 3D blood vessel model and the inlet pressure of the blood vessel to be measured, constructing a 3D coronary CFD model of the blood vessel to be measured; and calculating the guidewire-free FFR and the guidewire-free IMR according to the 3D coronary CFD model. The non-invasive detection of the CFR, FFR and IMR by adopting a DSA image auxiliary technology is realized.

Description

technical field [0001] The present application relates to the field of coronary artery physiology, in particular, to a detection method, device, computer-readable storage medium and processor for wire-free FFR, wire-free IMR and wire-free CFR. Background technique [0002] Coronary artery physiology plays an increasingly important clinical role in cardiology. Fractional Flow Reserve (FFR for short), Index of Microcirculatory Resistance (IMR for short), and Coronary Flow Reserve (CFR for short) are the most commonly used functional indicators to characterize the degree of coronary artery disease. core indicators. They are widely used to evaluate functional ischemia caused by coronary artery stenosis (assessed by FFR), microvascular ischemia without obvious obstruction (assessed by IMR), and coronary system ischemia including epicardial vessels and microvessels (assessed by FFR). CFR assessment). Fractional flow reserve (FFR) calculates the flow reserve capacity of that ves...

Claims

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Application Information

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IPC IPC(8): A61B6/00A61B5/021A61B8/04
CPCA61B6/481A61B6/504A61B6/5211A61B8/04A61B5/021
Inventor 张超赵清华毛益进岳会强冯辉刘伟
Owner BEIJING ESCOPE TECH CO LTD
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