Akshat Gotra MD, Presenter: Nothing to Disclose

Gabriel Chartrand BEng, Abstract Co-Author: Intern, Object Research Systems Inc

Kim-Nhien Vu MD, Abstract Co-Author: Nothing to Disclose

Franck Vandenbroucke-Menu MD, Abstract Co-Author: Nothing to Disclose

Claude Kauffmann PhD, Abstract Co-Author: Nothing to Disclose

Benoit Paul Gallix MD, PhD, Abstract Co-Author: Nothing to Disclose

Jacques A. De Guise, Abstract Co-Author: Research Grant, Emovi Inc Stockholder, Emovi Inc Spouse, CEO, Emovi Inc Research Grant, EOS imaging SA Royalties, EOS imaging SA Research Grant, OLEA Medical Research Grant, ORS Research Grant, Dassault Systemes Research Grant, Useful Progress

An Tang MD, Abstract Co-Author: Speaker, Siemens AG Speaker, Boehringer Ingelheim GmbH

(1) To review the clinical indications for performing liver segmentation, (2) to illustrate various segmentation methods, and (3) to discuss the pros and cons of CT and MRI for liver segmentation.

(1) Review of clinical indications for liver volumetry: future liver volume prior to major hepatectomy, pre-transplantation donor compatibility, virtual surgical planning. (2) Illustration of published segmentation methods: active contour, graph-cut, level-set, deformable models, statistical shape models, shape interpolation. (3) Comparison: pros and cons of each segmentation method. (4) Literature review: accuracy and precision of previously developed methods. (5) Classification by reference standard: manual segmentation, liver phantoms, surgical weight or volume. (6) Pitfalls on CT: low-contrast boundaries near tumors and adjacent organs. (7) Pitfalls on MRI: motion artifact, ghost artifact, partial volume averaging, signal inhomogeneity. (8) Future directions: vascular sub-segmentation, fully automated segmental volumetry, integration with MR-based biomarkers of chronic liver disease (e.g. fat, fibrosis, inflammation).

http://abstract.rsna.org/uploads/2014/14006379/14006379_tzr6.pdf

Gotra, A, Chartrand, G, Vu, K, Vandenbroucke-Menu, F, Kauffmann, C, Gallix, B, De Guise, J, Tang, A, Liver Segmentation: A Primer for Radiologists.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14006379.html