Imaging method and device thereof and nuclear magnetic system

Abstract

The invention provides an imaging method and a device thereof and a nuclear magnetic system. The imaging method is applied to the nuclear magnetic system with an ADC image acquisition function. The method comprises the following steps of: obtaining a multi-layer apparent dispersion coefficient ADC image of a scanned brain, determining at least one first connected region from an infarct core candidate region of each layer of ADC image, determining an area in the ADC image, which is symmetrical to the first connected area in structure, as a second connected area, according to the first relativeADCs of the pixel points in the first connected area and the second relative ADCs of the pixel points in the second connected area, determining a target infarcted core region and a target ischemic penumbra from the first connected region and the second connected region, and marking the target infarcted core region and the target ischemic penumbra are ed in the ADC image. The method provided by theinvention has the advantage of high accuracy of a lesion region detection result, and can accurately mark a brain lesion region on the ADC image.

Description

technical field [0001] The present application relates to the technical field of medical imaging, in particular to an imaging method, device and nuclear magnetic system. Background technique [0002] In magnetic resonance imaging, diffusion-weighted imaging (DWI) and apparent diffusion coefficient (ADC) imaging are imaging methods that can reflect the particularity of water molecule diffusion. In the acute stage of cerebral infarction, due to arterial blockage, the blood diffusion movement is weakened, and the ADC image shows obvious low signal intensity. With the development of the disease, the obvious low signal intensity of the ADC image gradually rises. [0003] In the related art, an ADC threshold is predetermined, and an area whose ADC of a pixel is smaller than the ADC threshold is determined as a lesion area. Based on different patients and different brain tissues in different brain positions of a patient, if the same ADC threshold is used to detect the lesion area ...

AI Technical Summary

Problems solved by technology

Based on different patients and different brain tissues in different brain positions of a patient, if the same ADC threshold is used to detect the lesion area in the brain of different patients, or to detect the lesion in the brain tissue of a patient at different positions, the detection results will be inaccurate, resulting in Inaccurate labeling of brain lesion regions on ADC images

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