A method, device, equipment, and storage medium for assessing blood flow reserve fraction
A technology for fractional blood flow reserve and flow, applied in the field of biomedical engineering, can solve problems such as difficulty, high computer performance requirements, and high computational cost, and achieve high accuracy and reliability.
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Embodiment 1
[0061] figure 1 It is a schematic flow diagram of the implementation of the method for evaluating the blood flow reserve fraction according to the embodiment of the present invention, such as figure 1 As shown, the method includes:
[0062] Step S101: Determine the distribution of keel nodes of the coronary arteries to be detected.
[0063] Step S102: Analyzing the distribution of the keel nodes to obtain the branch path of the coronary artery to be detected.
[0064] Step S103: Taking the keel node of the coronary artery as a node, divide the coronary artery into a plurality of flow elements, wherein the length of the flow element is the distance between adjacent nodes.
[0065] Step S104: Obtain the pressure loss parameter of the tube flow element according to the flow rate of the branch path of the coronary artery.
[0066] Step S105: Obtain the pressure loss of the pipe flow element and the pressure distribution of the keel node according to the pressure loss parameters...
Embodiment 2
[0105] Based on the same inventive concept as the foregoing embodiments, this embodiment describes the technical solutions of the foregoing embodiments through specific examples.
[0106] see figure 2 , figure 2 It is a schematic flow diagram of the implementation of the method for evaluating the blood flow reserve fraction according to the embodiment of the present invention, such as figure 2 shown, including:
[0107] Step S201: Establishing a three-dimensional image model of the coronary artery according to the CTA image data of the coronary artery in a state of hyperemia.
[0108] It should be noted that, in actual implementation, when the myocardial microcirculation of the patient's coronary artery is completely congested, computerized tomography CT equipment is used to perform angiography on the patient's heart vessel site to obtain CTA image data of the coronary artery; For the CTA image data of the artery, a three-dimensional image model of the coronary artery is...
Embodiment 3
[0153] Based on the same inventive concept as the foregoing embodiments, this embodiment describes the technical solutions of the foregoing embodiments through specific examples, specifically including:
[0154] The patient needs to use computed tomography CT equipment to perform angiography on the patient's heart vessels under the condition that the myocardial microcirculation of the coronary artery is completely congested, and obtain the CTA image data of the coronary artery; and then establish the coronary artery according to the CTA image data of the coronary artery. 3D image model. Exemplarily,
[0155] Figure 4 It is a schematic diagram of a reconstructed three-dimensional coronary artery model according to the embodiment of the present invention. The three-dimensional image model of the coronary arteries includes multiple main branches of the coronary arteries and part of the ascending aorta. ) artery, right coronary artery (RCA, Right Coronary Artery) and left coro...
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