Method for segmenting liver

Abstract

The invention relates to the field of medical image processing and provides a method and system for segmenting the liver. The method comprises the following steps that firstly, an obtained medical human body nuclear magnetic resonance sequence image is segmented, the liver part, the hepatic vein part, the portal vein part and the hepatic artery part are segmented and extracted, wherein the hepatic vein part, the portal vein part and the hepatic artery part are located in the liver part; secondly, all the branch points of a vessel tree are extracted according to the segmented hepatic vein part, the portal vein part and the hepatic artery part; all the main branches of blood vessels are analyzed according to all the branch points of the vessel tree; the main branches of the hepatic vein part, the portal vein part and the hepatic artery part are marked, and the liver is segmented according to the occupied space proportion of all the main branches of the vessel tree in liver body data. The method and system for segmenting the liver provide visual reference and guarantee for clinical operations or medical experiments.

Description

technical field [0001] The invention relates to the field of medical image processing, in particular to a liver segmentation method and system thereof. Background technique [0002] The liver is an important metabolic organ in the human body, and it is also the largest substantial organ in the human body. The liver has functions such as deoxidation, storage of glycogen, synthesis of secretory proteins, and secretion and excretion of bile. For non-nutrient substances such as various drugs, toxins and metabolites from the body and the body, the liver decomposes them through metabolism and excretes them from the body. Therefore, the liver has an important "detoxification function". System exceptions will occur. The liver is also one of the few organs in the body capable of tissue regeneration and recovery. [0003] However, the blood supply system inside the liver is quite complicated, and there are multiple sets of different vascular systems supplying blood to the liver. Fo...

AI Technical Summary

Problems solved by technology

However, there are obvious defects in liver segmentation at present, or liver segmentation is done manually by humans. This method is not only complicated, but also completely based on the experience of the segmentation operator, so different people may produce different results for the same liver segmentation. difference; or through computer automatic or semi-automatic segmentation, but due to the complexity of the liver, automatic or semi-automatic segmentation can only be segmented using planes, and cannot be segmented according to the direction of blood vessels inside the liver

[0005] In summary, the existing liver segmentation technology obviously has inconvenience and defects in actual use, so it is necessary to improve it