Method for quickly establishing intracranial vessel simulation three-dimensional model based on transfer learning

Abstract

The invention discloses a method for quickly establishing an intracranial blood vessel simulation three-dimensional model based on transfer learning. The method comprises the following steps: collecting a bright blood image group and an enhanced black blood image group of an intracranial blood vessel part; preprocessing each bright blood image and the corresponding enhanced black blood image to obtain a first bright blood image and a first black blood image; performing image registration on the first bright blood image by using mutual information based on Gaussian distribution sampling and a registration method of an image pyramid; utilizing a maximum intensity projection method to obtain MIP images in all directions from the registered bright blood image groups; taking the MIP image as atarget domain, taking the fundus blood vessel image as a source domain, and obtaining a two-dimensional blood vessel segmentation image by using a transfer learning method; performing back projectionsynthesis on the two-dimensional blood vessel segmentation images in the three directions to obtain first three-dimensional blood vessel body data; and obtaining an intracranial blood vessel simulation three-dimensional model by utilizing the second three-dimensional blood vessel body data corresponding to the registered bright blood image group. According to the method, the whole state of the intracranial blood vessel can be simply, conveniently, quickly and visually obtained clinically.

Description

technical field [0001] The invention belongs to the field of image processing, and in particular relates to a method for rapidly establishing a three-dimensional model of intracranial blood vessel simulation based on transfer learning. Background technique [0002] According to medical data, from 1990 to 2017, the number one cause of death among residents in 34 provinces of China (including Hong Kong, Macao and Taiwan) was stroke. Stroke is the rupture, stenosis or blockage of intracranial blood vessels that causes brain tissue necrosis, resulting in a series of symptoms, including cerebral hemorrhage, cerebral infarction, etc. If the treatment is not timely, the patient may die; disabled. [0003] At present, methods based on lumen imaging are usually used to evaluate the degree of intracranial vascular lesions and vascular stenosis clinically, such as digital subtraction angiography (Digital Subtraction Angiography, DSA), CT angiography (Computed Tomography Angiography, C...

AI Technical Summary

Problems solved by technology

[0005] Because the images corresponding to the bright blood sequence and black blood sequence obtained by magnetic resonance angiography are two-dimensional images, they have limitations

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