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High-precision matching model-based method for calculating coronary artery parameters

A matching model and calculation method technology, applied in the medical field, can solve the problems of poor result accuracy, high complexity and high cost, and achieve high practicability

Active Publication Date: 2018-02-23
QUANJING HENGSHENG BEIJING SCI & TECH CO LTD
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  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to solve the problem that the existing coronary artery parameter measurement method is complex and costly, but the calculation method often results in poor accuracy, and proposes a more accurate calculation method to obtain blood flow, blood flow reserve fraction, and microcirculation resistance index method

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Embodiment Construction

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, a calculation method of coronary artery parameters based on a high-precision matching model obtains angiographic images of coronary blood vessels and internal images of blood vessels, and matches the angiographic images with internal images of blood vessels to form a high-precision matching model. Calculate blood flow, fractional blood flow reserve, and microcirculation resistance index of coronary vessels based on a high-precision matching model.

[0032]Angiography and intravascular imaging are two different modalities commonly used to assess coronary artery disease. Angiographic imaging is to inject contrast fluid into blood vessels, use X-rays to project the human body in a certain direction, and output a two-dimensional projection map of the largest diameter lumen along...

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Abstract

The invention discloses a high-precision matching model-based method for calculating coronary artery parameters. According to the method, firstly, the angiography imaging means and the intravascular imaging means of a coronary vessel part are acquired. After that, an angiography image and an intravascular image are matched to form a high-precision matching model. The blood flow amount, the blood fractional Flow Reserve (FFR) and the microcirculation resistance index of microcirculatory resistance (IMR) of coronary vessels are calculated on the basis of the high-precision matching model. According to the method for calculating the coronary parameter blood flow, the blood flow reserve score and the microcirculation resistance index, the high-precision matching model of images is acquired through two ways, namely the angiography imaging means and the intravascular imaging means. The calculation result of the method is more accurate than the image of either the angiography imaging means orthe intravascular imaging means alone, so that the method is high in practicability.

Description

technical field [0001] The invention relates to the medical field, in particular to a method for calculating coronary parameters based on a high-precision matching model. Background technique [0002] Coronary heart disease caused by vascular stenosis is a disease that seriously affects people's health, and it is very important to be able to accurately diagnose and treat vascular stenosis. Generally speaking, more serious coronary heart disease needs to be diagnosed by Coronary Angiography (CAG). Although almost all coronary interventional operations require CAG, angiography is a projection imaging technique with poor precision and based on Limited angle projection, so the three-dimensional vessel lumen reconstruction obtained from angiography is not very accurate. Intravascular Ultrasound (IVUS) and Optical Coherence Tomography (OCT) are intravascular imaging methods with precision and accuracy unmatched by angiography. IVUS and OCT can provide a large amount of structura...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/30
CPCG06T7/30G06T2207/30104G06T2207/10101A61B6/4417A61B6/481A61B6/503A61B6/504A61B6/507A61B8/065A61B8/0883A61B8/4416A61B8/5246A61B8/5223A61B8/06A61B8/12A61B6/12A61B8/5261A61B5/0035A61B5/0066A61B5/0084G16H30/40G16H50/50G16H30/20G06T7/0016G06T2207/10132G06T2207/30048G06T7/62A61B5/027G06T7/344G06T7/70G06T7/20G06T7/0012A61M25/0108G06T2207/30241G06T2207/30204G06T2207/20221G06T7/75
Inventor 于波贾海波胡思宁代建南邢磊王钊张帅其他发明人请求不公开姓名
Owner QUANJING HENGSHENG BEIJING SCI & TECH CO LTD
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