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A method and device for obtaining vascular blood flow reserve fraction

A blood flow reserve fraction and blood vessel technology, which is applied in the field of vascular blood flow reserve fraction, can solve the problems of time-consuming, trauma to blood vessels, high clinical costs, etc., and achieve the effect of avoiding trauma risk and shortening time-consuming

Active Publication Date: 2022-05-31
SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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Problems solved by technology

[0005] At present, the technology used to obtain the blood flow reserve fraction is to determine the blood flow fraction of the blood vessel by obtaining the pressure difference ratio between the normal part and the stenotic part of the blood vessel through the pressure sensor of the intervening blood vessel, such as an interventional catheter or guide wire. Such methods have traumatic blood vessels risk, and the clinical cost is high and time-consuming

Method used

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  • A method and device for obtaining vascular blood flow reserve fraction
  • A method and device for obtaining vascular blood flow reserve fraction
  • A method and device for obtaining vascular blood flow reserve fraction

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Embodiment 1

[0033] A method for obtaining vascular blood flow reserve fraction, the steps of which are:

[0034] A. Receive the blood vessel image of the angiography unit, and process it as sequence image data in order of time, specifically convert the image data into sequence image data I according to the format of the device (currently used equipment) K,M×N , where K represents the number of image sequence frames, M represents the number of horizontal pixels of each frame of image data, N represents the number of vertical pixels of each frame of image data, and the sequence image data I K,M×N stored on the storage carrier, and then the carrier will sequence the image data I K,M×N Input to the image processing carrier, the image processing carrier determines the proximal end and the distal end of the blood vessel in the region of interest in the blood vessel image, the proximal end is determined as the place where normal blood flow passes, and the distal end is determined as the stenotic...

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Abstract

The present invention relates to blood flow reserve fraction, and in particular to a method for obtaining vascular blood flow reserve fraction. The non-linear diffusion filter of the differential equation denoises the sequence image data; C. Segments the blood vessel image from the background image; D. Performs wavelet edge detection on the blood vessel image, and extracts the edge of the blood vessel image by decomposing the mutation point of the image E. Obtain the vascular blood flow reserve fraction according to the time interval between the vascular image and each frame of image; A method for obtaining fractional blood flow reserve, and a corresponding device.

Description

technical field [0001] The present invention relates to blood flow reserve fraction, in particular to a method and device for obtaining vascular blood flow reserve fraction. Background technique [0002] Nowadays, cardiovascular disease has always been one of the major hazards to human health. Cardiovascular stenosis will directly affect the blood supply to the myocardium, and in severe cases, it will lead to myocardial infarction and other diseases that endanger the lives of patients. It is particularly important to evaluate the degree of vascular stenosis in clinical application. Angiography can truly reflect the stenosis of the blood vessel, but it is impossible to accurately assess the degree of stenosis of the blood vessel, and cannot provide effective support for subsequent treatment. [0003] Fractional Flow Reserve (FFR) refers to the difference between the maximum blood flow that can be obtained by the myocardial region supplied by the blood vessel and the theoreti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/13G06T7/194G06T7/136G16H30/00
CPCG06T7/0012G06T7/13G06T7/194G06T7/136G16H30/00G06T2207/10121G06T2207/20192G06T2207/30104
Inventor 杨勇
Owner SICHUAN JINJIANG ELECTRONICS SCI & TECH CO LTD
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