Semi-automatic liver segmenting method

Abstract

The invention relates to the field of medical image processing, and provides a semi-automatic liver segmenting method and system. The semi-automatic liver segmenting method comprises the following steps of firstly segmenting an obtained medical human body nuclear magnetic resonance sequence image, and segmenting and extracting a liver part, and a hepatic vein, a portal vein and a hepatic artery in the interior of the liver; analyzing each main branch of blood vessels according to branch points of each blood vessel tree; obtaining segmenting seed points by manually marking each main branch of the hepatic vein, the portal vein and the hepatic artery, and the liver internal segmenting points; and performing segmenting on the liver according to the occupied space ratio of the marked seed points in the liver body data. The invention provides the semi-automatic liver segmenting method and system, so that visualized reference and guarantee are provided 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. For...

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