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COMBINING MESH, VOLUME, AND STREAMLINE REPRESENTATIONS FOR POLYP DETECTION IN CT COLONOGRAPHY
| Content Provider | CiteSeerX |
|---|---|
| Author | Botha, C. P. Vos, F. M. Ravesteijn, V. F. Van Post, F. H. Zhao, L. Vliet, L. J. Van |
| Abstract | CT colonography is a screening technique for adenomatous colorectal polyps, which are important precursors to colon cancer. Computer aided detection (CAD) systems are developed to assist radiologists. We present a CAD system that substantially reduces false positives while keeping the sensitivity high. Hereto, we combine protrusion measures derived from the solution of a non-linear partial differential equation (PDE) applied to both an explicit mesh and an implicit volumetric representation of the colon wall. The shape of the protruding elements is efficiently described via a technique from data visualization based on curvature streamlines. A lowcomplex pattern recognition system based on an intuitive feature from the aforementioned representations improves performance to less than 1.6 false positives per scan at 92 % sensitivity per polyp. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Screening Technique Ct Colonography Non-linear Partial Differential Equation Cad System Important Precursor Protrusion Measure Colon Wall Aforementioned Representation Protruding Element Implicit Volumetric Representation Colon Cancer Intuitive Feature Combining Mesh Explicit Mesh Data Visualization Adenomatous Colorectal Polyp False Positive Lowcomplex Pattern Recognition System Curvature Streamlines |
| Content Type | Text |
