Three-dimensional MRI focus image segmentation method and system

An image segmentation and lesion technology, applied in the field of lesion identification, can solve the problems of doctors’ professional requirements, easy missed detection, increase of doctor’s workload, etc., and achieve the effect of improving expression accuracy and auxiliary accuracy

Pending Publication Date: 2022-05-13
XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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[0005] The purpose of the present invention is to provide a three-dimensional MRI lesion image segmentation method and system to solve the problem that doctors in the prior art need to diagnose diseases based on multiple time-sequence images w

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  • Three-dimensional MRI focus image segmentation method and system
  • Three-dimensional MRI focus image segmentation method and system
  • Three-dimensional MRI focus image segmentation method and system

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[0066] The following will be combined with the accompanying drawings in the embodiments of the present invention, the technical solution in the embodiments of the present invention will be described clearly and completely, it is clear that the embodiments described are only a part of the embodiment of the present invention, not all embodiments. Based on embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work, are within the scope of protection of the present invention.

[0067] as Figure 1As shown, in the process of MRI imaging, by changing the influencing factors of MR signal, different sliced images can be obtained, these different sliced images are called slice image sequences, such as according to T1 value weighting, T1 slice image sequences can be obtained, according to T2 value weighting can obtain T2 slice image sequences, a case can have multiple slice image sequences, T1 slice image sequence...

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Abstract

The invention discloses a three-dimensional MRI (Magnetic Resonance Imaging) lesion image segmentation method and a three-dimensional MRI lesion image segmentation system. The three-dimensional MRI lesion image segmentation method comprises the following steps: S1, obtaining an important lesion feature image sequence from a multi-modal MRI image under various weighted S2, sequentially performing focus feature reconstruction on each group of focus important feature image sequences to obtain MRI focus images in corresponding weighted imaging modes, and sequentially calculating focus information degree of each MRI focus image; and S3, constructing a modal weight corresponding to a weighted imaging modal based on the lesion information degree, and performing modal feature reconstruction on all the MRI lesion images according to the modal weight to obtain a three-dimensional MRI lesion image. According to the three-dimensional MRI lesion feature representation method, all lesion features in various weighted imaging modes are subjected to generalization and personalized overall representation in the three-dimensional MRI lesion image, so that the expression accuracy of the lesion features of the target object is improved, and the auxiliary precision of a doctor on disease diagnosis is improved.

Description

technical field [0001] The invention relates to the technical field of lesion identification, in particular to a method and system for segmenting three-dimensional MRI lesion images. Background technique [0002] With the development of digital medical technology, the role of medical images in the medical diagnosis process has become more and more obvious, and it has gradually become the main tool for doctors to observe human lesions. When diagnosing a disease, doctors generally search for regions of interest representing lesions from medical images artificially based on experience. [0003] MRI (English full name: Magnetic Resonance Imaging, Chinese full name: Nuclear Magnetic Resonance Imaging) image is one of the commonly used medical images. MRI imaging is a kind of tomographic imaging. It uses magnetic resonance to obtain electromagnetic signals from the human body and reconstruct the human body. information to obtain MRI images. It can directly make tomographic image...

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Application Information

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IPC IPC(8): G06T7/136G06T5/40
CPCG06T7/136G06T5/40G06T2207/10028G06T2207/10088G06T2207/30096G06T2207/10024
Inventor 吴林霞岑春媛韩萍
Owner XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV
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