Method and device for collecting cerebral apoplexy tissue window evaluation value and storage medium

Abstract

The invention discloses a method and a device for collecting a cerebral apoplexy tissue window evaluation value, a storage medium and computer equipment. The method comprises the following steps: detecting an abnormal region feature corresponding to a DWI sequence according to the DWI sequence and an ADC sequence, and segmenting a first abnormal region Rdwi in the DWI sequence; mapping the first abnormal region Rdwi to a FLAIR sequence of the inspection object, and determining a second abnormal region Rflag; taking the part, except the second abnormal region Rflag, in the brain tissue region of the FLAIR sequence as a target analysis region Rnorm, and obtaining a target evaluation region of the FLAIR sequence according to the target analysis region Rnorm; and determining a cerebral apoplexy tissue window evaluation value of the examination object based on the gray statistical values corresponding to all the pixel points in the target evaluation region and the gray values of all the pixel points in the second abnormal region Rflair.

Description

technical field [0001] The present application relates to the technical field of medical images, in particular to a method and device, a storage medium, and a computer device for obtaining an evaluation value of a stroke tissue window. Background technique [0002] Stroke is currently one of the major fatal and disabling diseases in all countries in the world. Stroke has become the first fatal disease in China and the leading cause of adult disability in China. For stroke patients, early intravenous thrombolysis and endovascular therapy can recanalize the occluded blood vessels and reperfuse the blood flow, thereby reducing the infarct volume, reducing the incidence of disability, and effectively improving the overall prognosis of patients. Therefore, how to make patients with acute cerebral infarction receive reperfusion therapy safely and effectively has become an urgent problem to be solved. The treatment of early stroke patients mainly depends on the time window, but wi...

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Problems solved by technology

[0003] At present, doctors evaluate the degree of DWI-FLAIR mismatch in patients mainly by visually observing the high signal in the DWI (Diffusion Weighted Imaging, magnetic resonance diffusion weighted imaging) sequence, and whether the signal in the corresponding area on the T2 FLAIR (magnetic resonance imaging fluid attenuated inversion recovery) sequence is Abnormal, the method of naked eye observation is relatively easy to judge the obvious abnormal signal of T2 FLAIR sequence, but it is difficult to identify the inconspicuous high signal of T2 FLAIR sequence, and it is impossible to accurately obtain the degree of DWI-FLAIR mismatch

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