Liver Segmentation on CT and MR Using Laplacian Mesh Optimization- MATLAB PROJECTS CODE


The purpose of this paper is to describe a semi-automated segmentation method for the liver and evaluate its performance on CT-scan and MR images. Methods: First, an approximate 3D model of the liver is initialized from a few usergenerated contours to globally outline the liver shape. The model is then automatically deformed by a Laplacian mesh optimization scheme until it precisely delineates the patient’s liver.

A correction tool was implemented to allow the user to improve the segmentation until satisfaction. Results: The proposed method was tested against 30 CT-scans from the SLIVER07 challenge repository and 20 MR studies from the Montreal University Hospital Center (CHUM), covering a wide spectrum of liver morphologies and pathologies. The average volumetric overlap error was 5.1% for CT and 7.6% for MRI and the average segmentation time was 6 minutes.

Conclusion: The obtained results show that the proposed method is efficient, reliable and could effectively be used routinely in the clinical setting. Significance: The proposed approach can alleviate the cumbersome and tedious process of slice-wise segmentation required for precise hepatic volumetry, virtual surgery and treatment planning.