Marri Horvat MS, Presenter: Employee, MIM Software, Inc

Sara Pirozzi BS, Abstract Co-Author: Employee, MIM Software, Inc

Aaron S. Nelson MD, Abstract Co-Author: Owner, MIM Software Inc Employee, MIM Software Inc

Jon W. Piper BEng, Abstract Co-Author: Employee, MIM Software, Inc Stockholder, MIM Software, Inc

The Multi-atlas approach is an accurate method for liver contour generation. All Multi-atlases except Multi-4 were significantly more accurate than SBM. While still requiring editing, these results indicate the potential for Multi-atlas to further decrease liver contouring time.

Fast and accurate contour generation is important for calculating liver volumes for procedures such as Y90 microsphere treatments and radiation therapy planning. The aim of this study was to evaluate atlas segmentation using a single best match (SBM) atlas compared with combined segmentations using multiple atlas matches.

Horvat, M, Pirozzi, S, Nelson, A, Piper, J, Atlas-based Segmentation: A Comparison of Single and Multiple Atlas Matches for Automatic Liver Segmentation.  Radiological Society of North America 2012 Scientific Assembly and Annual Meeting, November 25 - November 30, 2012 ,Chicago IL. http://archive.rsna.org/2012/12043903.html