Segmentation of hepatic vessels from MRI images for planning of electroporation-based treatments in the liver.

ABSTRACT:

Introduction

Electroporation-based treatments rely on increasing the permeability of the cell membrane by high voltage electric pulses delivered to tissue via electrodes. To ensure that the whole tumor is covered by the sufficiently high electric field, accurate numerical models are built based on individual patient geometry. For the purpose of reconstruction of hepatic vessels from MRI images we searched for an optimal segmentation method that would meet the following initial criteria: identify major hepatic vessels, be robust and work with minimal user input.

Materials and methods

We tested the approaches based on vessel enhancement filtering, thresholding, and their combination in local thresholding. The methods were evaluated on a phantom and clinical data.

Results

SUBMITTER: Marcan M 

PROVIDER: S-EPMC4110083 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature