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Hepathic Surgery Planification

Purpose and Definitions

The liver is an organ delimited to 8 anatomical segment defined from portal vein and sus-hepatic vein. They are used as surgical unit in anatomical hepatic resection. These resections consist to remove the infected areas of the liver, segment by segment. In pratice, surgeons use the Couinaud definition which allows to delimitate segments from landmarks localise on the portal vein (see the following images).

This work is a part of the European Eureka Project MASTER intented to create tools for planification and simulation of liver surgery allowing from conventional 3D CT-Scans the reconstruction of a numerical model of the liver and its internal structures (its vessels and its lesions). This model will contain anatomical informations used by surgeons the preoperative analysis, i.e. the localisation of the 8 anatomical segments, but also the vessels labelling allowing a precise surgical planification in respect with the anatomical definitions.