Evaluation system and evaluation method for early noncontrast CT image of stroke, and readable storage medium

Abstract

The invention provides an evaluation system and evaluation method for an early noncontrast computed tomography (CT) image of stroke, and a readable storage medium. The evaluation system includes a preprocessing module, a brain blood supply area segmentation module, a segmentation scoring module and a comprehensive scoring module; a brain parenchyma segmentation unit can realize the processing of removing a skull and retaining a brain parenchyma of the noncontrast CT image; the brain blood supply area segmentation module is used to register a brain blood supply area template image to the noncontrast CT image, and map a plurality of segmented blood supply areas marked in the brain blood supply area template image to the noncontrast CT image registered with the areas to obtain a plurality ofsegmented blood supply areas in the noncontrast CT image; and the comprehensive scoring module is used to score the image performance of each segmented blood supply area in the noncontrast CT image toobtain an overall score of the noncontrast CT image. The evaluation system can assist doctors for diagnose in the early diagnosis and treatment of the stroke, reduce the subjective difference of thedoctors, and help improve the diagnosis efficiency and accuracy; and the evaluation method and the readable storage medium have the same advantages.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to an evaluation system, evaluation method, and readable storage medium for plain CT images in the early stage of cerebral apoplexy. Background technique [0002] Stroke is a major disease that seriously threatens the health of the population and hinders social and economic development. According to statistics, about 1.96 million people died of stroke in China in 2017. Compared with hemorrhagic stroke, the incidence of ischemic stroke is higher, accounting for 60% to 70% of the total stroke. There are more than 2 million new patients with acute ischemic stroke (AIS for short) every year in my country. One of the keys to the treatment of AIS is the time window. Early diagnosis can greatly improve the effect of treatment and rehabilitation, and some specific AIS treatment measures require case selection to select suitable patients for targeted treatment. Therefore, in the acute sta...

AI Technical Summary

Problems solved by technology

However, in current clinical applications, experienced doctors often need to evaluate the plain CT images of the brain to obtain the early scores of stroke items, which is relatively subjective, and the difference between the lesion area and the normal area on the conventional plain CT images And the boundary of the blood supply area is difficult to directly observe with the naked eye. Usually, doctors only describe the plain CT images of the brain from the typical levels (tomography of the nuclei area and the area of ​​​​the nuclei area), which has low sensitivity and cannot achieve very high High diagnostic accuracy

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