Preoperative estimation method and system for intracranial aneurysm operation, terminal and medium

Abstract

The invention discloses a preoperative estimation method for an intracranial aneurysm operation. The preoperative estimation method comprises the following steps: segmenting 3D-DSA image data of a patient to obtain surface representation of a geometrical shape of each aneurysm blood vessel; unprocessing each aneurysm blood vessel and processing each aneurysm blood vessel by using a modeling operation implant, and simulating to implant the virtual operation stent into the geometrical shape of the aneurysm; performing a grid dependence test on a grid; calculating the pressure of the aneurysm and the speed vertical to the plane of the aneurysm corresponding to the wall shear force before and after the implantation of the aneurysm model, conducting comparing at a contraction peak, and outputting a preoperative blood flow model and a postoperative blood flow model; exporting a postoperative numerical value according to the postoperative blood flow model, and calculating the ratio of the surface area of the aneurysm orifice to the residual circumferential surface area of the corresponding parent artery; and exporting parameters according to the preoperative blood flow model and the postoperative blood flow model, and evaluating the postoperative score according to the parameters and the ratio. According to the method, postoperative prediction and evaluation can be carried out before the intracranial aneurysm operation, and reliable and effective auxiliary judgment is provided for doctors.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to a method, system, terminal and medium for preoperative estimation of intracranial aneurysm gestures. Background technique [0002] Intracranial aneurysm (IAs) is a common cerebrovascular disease in neurosurgery. It is a pathological change of blood vessels caused by structural abnormalities of intracranial hemangioma, and the incidence rate is 4%-6%. Microsurgery significantly reduces the risk of aneurysmal subarachnoid hemorrhage and severe cerebral vasospasm and brain swelling. However, for the treatment of bifurcated and complex aneurysms, the spatial configuration of the curved surface of the intracranial aneurysm neck should be considered. There are multiple issues involved, and rash surgery on patients with inappropriate intracranial aneurysms may result in postoperative cerebral ischemia in up to 60% of patients with intracranial aneurysms. Although most ischem...

AI Technical Summary

Problems solved by technology

Various bypass techniques are available clinically, but algorithmic methods for classifying these lesions and determining the optimal bypass strategy have not yet been developed

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