Carestream Molecular Imaging View Institution's Website 1 article published in JoVE Medicine Segmentation and Measurement of Fat Volumes in Murine Obesity Models Using X-ray Computed Tomography Todd A. Sasser1, Sarah E. Chapman2, Shengting Li1, Caroline Hudson2, Sean P. Orton1, Justin M. Diener3, Seth T. Gammon1, Carlos Correcher4, W. Matthew Leevy2 1Carestream Molecular Imaging, 2Department of Chemistry and Biochemistry, University of Notre Dame, 3Freimann Life Science Center, University of Notre Dame, 4Research and Development, Oncovision, GEM-Imaging S.A. Fat content analysis is routinely conducted in studies utilizing murine obesity models. Emerging methods in small animal CT imaging and analysis are providing for longitudinal detail rich fat content analysis. Here we detail step by step procedures for performing small animal CT imaging, analysis, and visualization.