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Coronary microvascular resistance index calculation device and method

A computing device and microvascular technology, which is applied in computing, computer parts, image data processing, etc., can solve the problems of IMR doctors' complex operations and achieve the effect of reducing workload and simple operation

Pending Publication Date: 2020-09-04
SHANGHAI XINGMAI INFORMATION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a coronary microvascular resistance index calculation device and method for solving the problem that the existing IMR acquisition scheme requires doctors to perform complex operations

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  • Coronary microvascular resistance index calculation device and method
  • Coronary microvascular resistance index calculation device and method
  • Coronary microvascular resistance index calculation device and method

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Embodiment Construction

[0039] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0040] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and size of the compon...

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Abstract

The invention provides a coronary artery microvascular resistance index calculation device and method. The coronary artery microvascular resistance index calculating device comprises an aortic pressure obtaining module, a coronary artery microvascular resistance index calculating module and a coronary artery microvascular resistance index calculating module, the DSA image acquisition module is used for acquiring a coronary artery DSA image sequence; the change curve generation module is connected with the DSA image acquisition module and is used for generating a contrast agent area change curve according to the imaging areas of the contrast agent in a plurality of target frames and the imaging time of the target frames; the curve slope acquisition module is connected with the change curvegeneration module and is used for acquiring the average slope of the contrast agent area change curve; and the resistance index calculation module is connected with the aortic pressure acquisition module and the curve slope acquisition module and is used for calculating the coronary microvascular resistance index according to the aortic pressure and the average slope. The coronary artery microvascular resistance index calculation device basically does not need doctor participation in the process of calculating the coronary artery microvascular resistance index, and is simple to operate.

Description

technical field [0001] The invention belongs to the field of cardiovascular measurement, and relates to an index calculation device, in particular to a coronary microvascular resistance index calculation device and method. Background technique [0002] At present, it has been recognized that impaired coronary microcirculation function is an independent risk factor determining the prognosis of acute myocardial infarction, so the evaluation of the functional status of coronary microcirculation in patients has been paid more and more attention. Coronary microvascular resistance index (Index of Microvascular Resistance, IMR) is the reciprocal of the distal coronary artery pressure Pd divided by the mean conduction time Tmn in the state of maximum hyperemia, and is often used to evaluate the distal microvascular function of coronary artery stenosis. In the prior art, a pressure guidewire with a temperature sensor is generally used to measure relevant parameters and obtain an IMR ...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06T7/62G06K9/62
CPCG06T7/0012G06T7/11G06T7/62G06T2207/10081G06T2207/20081G06T2207/30104G06F18/214Y02T90/00
Inventor 赵夕房劬刘维平
Owner SHANGHAI XINGMAI INFORMATION TECH CO LTD
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