DOI: 10.1148/radiol.2361041926
CT Colonography Reporting and Data System: A Consensus Proposal1
Michael E. Zalis, MD,
Matthew A. Barish, MD,
J. Richard Choi, ScD, MD,
Abraham H. Dachman, MD,
Helen M. Fenlon, MD,
Joseph T. Ferrucci, MD,
Seth N. Glick, MD,
Andrea Laghi, MD,
Michael Macari, MD,
Elizabeth G. McFarland, MD,
Martina M. Morrin, MD,
Perry J. Pickhardt, MD,
Jorge Soto, MD,
Judy Yee, MD, For the Working Group on Virtual Colonoscopy
1 From the Division of Abdominal Imaging and Intervention, Department of Radiology/White 270, Massachusetts General Hospital, Boston, MA 02114 (M.E.Z.). The complete list of author affiliations is at the end of this article. Received November 12, 2004; accepted November 15.
Address correspondence to M.E.Z. (e-mail: mzalis{at}partners.org).

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Figure 1. Suggested feature descriptors for polyps and masses. 3D = three-dimensional.
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Figure 2. Suggested categorization system for CT colonography findings and follow-up recommendations. ACR = American College of Radiology (33), prep = preparation.
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Figure 3. Proposed categorization system for extracolonic findings. A complete listing of potential extracolonic findings and descriptors is not provided here. A nonexhaustive set of examples is provided for each category.
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Copyright © 2005 by the Radiological Society of North America.