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Magnetic resonance imaging hippocampus segmentation method and device

A technology of nuclear magnetic resonance and hippocampus, which is applied in the field of image processing, can solve problems such as poor repeatability, blurred edges, and low contrast, and achieve the effect of improving generalization ability and accuracy

Inactive Publication Date: 2020-09-22
PERCEPTION VISION MEDICAL TECH CO LTD +1
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Problems solved by technology

Due to the small proportion of the hippocampus in MRI, irregular shape, low contrast and blurred edges, manual segmentation is time-consuming and labor-intensive, with poor repeatability

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  • Magnetic resonance imaging hippocampus segmentation method and device
  • Magnetic resonance imaging hippocampus segmentation method and device
  • Magnetic resonance imaging hippocampus segmentation method and device

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0035] figure 1 Schematic diagram of the MRI hippocampus segmentation method provided by the embodiment of the present invention, such as figure 1 As shown, the embodiment of the present invention provides an MRI hippocampus segmentation method, which is executed by an MRI hippocampus segmentation device. The method includes:

[0036] St...

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Abstract

The embodiment of the invention provides an MRI hippocampus segmentation method and device. The method comprises the steps that target MRI is acquired, wherein the target MRI comprises a hippocampus to be segmented; the target MRI is input into a preset multi-task learning model, and a hippocampus segmentation probability graph is output, wherein the multi-task learning model is obtained by training based on a human brain MRI hippocampus image sample and corresponding label information, and the multi-task learning model comprises a segmentation task module, an edge prediction task module and adistance regression task module; and binarization processing is performed on the hippocampus segmentation probability graph to obtain a hippocampus segmentation result. According to the MRI hippocampus segmentation method and device provided by the embodiment of the invention, the optimization process is constrained by adding an additional edge prediction task and distance regression task, so that the model is more sensitive to the hippocampus edge, the generalization ability of the model is improved, and the hippocampus segmentation accuracy is improved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a method and device for segmenting the hippocampus of nuclear magnetic resonance images. Background technique [0002] Located between the thalamus and the medial temporal lobe, the hippocampus is a part of the limbic system and is mainly responsible for long-term memory storage conversion and orientation. Changes in the shape and volume of the hippocampus have an important relationship with Alzheimer's disease (Alzheimer'sDisease, AD). AD is a progressive, irreversible brain disease characterized by cognitive decline and memory loss. For the treatment of AD, there is still no effective method. Timely detection of changes in the shape and volume of the hippocampus by MRI (Magnetic Resonance Imaging, MRI) can effectively slow down the discovery of the disease. [0003] Currently, the measurement of hippocampus shape and volume is mainly achieved by manually segmenting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06T7/13G06N3/08G06N3/04
CPCG06T7/13G06T7/11G06N3/084G06T2207/30016G06T2207/10088G06N3/045
Inventor 杨梓铎钱东东魏军
Owner PERCEPTION VISION MEDICAL TECH CO LTD
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