Methods, systems, terminals and media for preoperative prediction of intracranial aneurysm surgery

Abstract

The preoperative prediction method for intracranial aneurysm surgery disclosed in the present invention comprises: segmenting the 3D-DSA image data of the patient to obtain a surface representation of the geometric shape of each aneurysm blood vessel; and processed with modeled surgical implants, simulating the geometry of the implanted aneurysm with a virtual surgical stent; performing grid-dependent tests on the mesh; calculating the wall shear force corresponding to the aneurysm pressure and the The velocity perpendicular to the plane of the aneurysm was compared at the systolic peak, and the preoperative blood flow model and the postoperative blood flow model were output; the postoperative value was derived according to the postoperative blood flow model, and the surface area of ​​the aneurysm mouth and the corresponding parent artery were calculated. The ratio of the remaining circumferential surface area to the remaining circumferential surface area; parameters were derived from the preoperative blood flow model and the postoperative blood flow model, and the postoperative score was evaluated according to the parameters and ratios. The method can perform postoperative prediction and evaluation before intracranial aneurysm surgery, and provide doctors with reliable and effective auxiliary judgments.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method, a system, a terminal and a medium for preoperative estimation of intracranial aneurysm gestures. Background technique [0002] Intracranial aneurysm (IAs) is a common cerebrovascular disease in neurosurgery. Microsurgery significantly reduces the risk of aneurysmal subarachnoid hemorrhage and severe cerebral vasospasm and brain swelling. However, in the management of bifurcations and complex aneurysms, the spatial configuration of the curved surface of the neck of the intracranial aneurysm should be considered. It involves a number of problems, and rash surgery on patients with inappropriate intracranial aneurysms may lead to postoperative cerebral ischemia in up to 60% of patients with intracranial aneurysms. Although most ischemic lesions are asymptomatic, subtle cognitive impairment may result after selective aneurysm repair. After intracranial aneurysm interven...

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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