Computer-assisted multi-needle surgical planning for large liver tumor radiofrequency ablation

摘要

Multi-needle surgical planning is a quite complex and difficult job for doctors since the desired result is not very intuitive and has many constrains. The aim of this paper is let the computer automatically compute the operation scheme of the large liver tumor radiofrequency ablation, including puncture needles' number and their respective path. To solve the problem we proposed a semiautomatic approach based on 3D level set to segment liver tumor from CT volume. And based on the construction of the segmentation results, we proposed an algorithm to get an expected operation scheme. We develop a system implement the algorithm in this paper. It can help doctor to complete the surgical planning part almost automatically. The approach we proposed also can be used in other similar system.