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Method and system for quickly calculating microcirculation resistance

A fast calculation and resistance technology, applied in the field of microcirculation calculation, can solve the problems of long operation time, overestimation of microcirculation resistance index value, low time resolution, etc., and achieve the effect of simple operation process, improved accuracy and time saving

Active Publication Date: 2018-05-01
PULSE MEDICAL IMAGING TECH (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology helps improve cardiac imaging by calculating its own characteristics based upon certain factors like vascular pressures or blood flows during heartbeats. It does this through an algorithm that allows us to expand the small arteries around our chest wall instead of just filling them up with fluid from their veins. By doing it overcomes previous methods requiring extensive tissue dissection before measuring these properties accurately. Additionally, we use advanced artificial intelligence techniques such as convolution neural networks (CNN) to speed-up the evaluation of the effectiveness of different treatments. Overall, this innovative technique simplifies the procedure and saves money compared to current procedures.

Problems solved by technology

This patents discusses three main ways how well healthcare providers check their patients' chambers through ultrasound examination. However, there exist limitations associated with current diagnostic tools like angioscopy and CT scan due to subjectivity factors including patient characteristics, doctor expertise, skill levels required, and cost effectiveness. There exists a problem called microciruclaratiorency syndrome, which occurs when measuring changes in oxygen supply caused by decreased lung vasospasm without any objective means being able to accurately determine if these measurements were accurate.

Method used

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  • Method and system for quickly calculating microcirculation resistance
  • Method and system for quickly calculating microcirculation resistance
  • Method and system for quickly calculating microcirculation resistance

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Embodiment 1

[0063] In order to further understand the present invention, the present invention will be further elaborated and illustrated below in conjunction with the examples. figure 1 It is a flow chart of the method of the present invention, combined with image 3 In a specific embodiment, the method can be summarized as: acquiring image data of the lumen of the vessel of interest from traditional coronary angiography data, establishing a geometric model of the vessel segment and obtaining geometric parameters, Evaluate the maximum blood flow velocity V of the vessel segment under the condition of fully expanded myocardial microcirculation, that is, the state of maximum hyperemia, by using the resting-state conventional angiographic data without sufficient expansion of myocardial microcirculation max and coronary blood flow Q max , to solve the pressure difference ΔP corresponding to the maximum blood flow velocity max , coronary artery proximal endpoint pressure P a and the distal...

Embodiment 2

[0102] In another specific embodiment, the method of the present invention is used to analyze the microcirculation resistance of a specific coronary vessel, and a specific example of the left anterior descending coronary artery is used to illustrate the specific implementation of the present invention. Specifically, this method can be implemented through the following steps:

[0103] (1) Carry out traditional X-ray contrast imaging process. For example, it can be conventional image data taken by combining with a contrast agent;

[0104] (2) Select the left anterior descending coronary artery of the heart as the vessel of interest, and determine the starting point and the ending point of the blood vessel; that is, the starting point and the ending point of a section of the blood vessel to be focused on;

[0105] (3) establish the geometric model of left anterior descending coronary artery, described geometric model comprises actual vessel lumen geometric model, ideal vessel lu...

Embodiment 3

[0114] In yet another specific embodiment, such as figure 2 As shown, the present invention also provides a system for rapidly calculating microcirculation resistance based on imaging data, the system comprising:

[0115] An image acquisition module, configured to receive image data of the lumen of the vessel of interest;

[0116] The geometric model building module is used to establish the actual vessel lumen model and the ideal vessel lumen model of the vessel of interest, and deliver the results to the geometric parameter acquisition module;

[0117] The geometric parameter acquisition module acquires the geometric parameters of the vessel segment of interest, including the area or diameter of the proximal cross-section of the vessel segment, the area or diameter of the distal cross-section of the vessel segment, the position of the vessel segment at the proximal end point and the distal end point The cross-sectional area or diameter of the lesion, lesion length, stenosis...

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Abstract

The invention provides a method and system for quickly calculating the microcirculation resistance, and the method comprises the steps: obtaining the image data of an interest blood vessel lumen fromconventional coronary angiogram data; building a geometric model of a blood vessel segment, and obtaining geometric parameters; completing the obtaining of the maximum blood flow speed and coronary blood-flow volume of the blood vessel segment through the conventional coronary angiogram data without the full expansion of the microcirculation of the cardiac muscle during the full expansion of the microcirculation of the cardiac muscle; solving the pressure difference corresponding to the maximum blood flow speed, the end point pressure of a coronary artery near end and the end point pressure ofa far end; and quantitatively calculating the coronary microcirculation resistance in a simplified mode. According to the scheme of the invention, the method does not need a guide wire, reduces the cost while improving the accuracy, remarkably reduces the calculation time, and enables the whole operation process to be simpler.

Description

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Claims

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Application Information

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Owner PULSE MEDICAL IMAGING TECH (SHANGHAI) CO LTD
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