New automatic mode of visualizing the colon via Cine CT

Jayaram K. Udupa; Dewey Odhner; Harvey C. Eisenberg

doi:10.1117/12.428060

28 May 2001 New automatic mode of visualizing the colon via Cine CT

Jayaram K. Udupa, Dewey Odhner, Harvey C. Eisenberg

Proceedings Volume 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures; (2001) https://doi.org/10.1117/12.428060
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

Methods of visualizing the inner colonic wall by using CT images has actively been pursued in recent years in an attempt to eventually replace conventional colonoscopic examination. In spite of impressive progress in this direction, there are still several problems, which need satisfactory solutions. Among these, we address three problems in this paper: segmentation, coverage, and speed of rendering. Instead of thresholding, we utilize the fuzzy connectedness framework to segment the colonic wall. Instead of the endoscopic viewing mode and various mapping techniques, we utilize the central line through the colon to generate automatically viewing directions that are enface with respect to the colon wall, thereby avoiding blind spots in viewing. We utilize some modifications of the ultra fast shell rendering framework to ensure fast rendering speed. The combined effect of these developments is that a colon study requires an initial 5 minutes of operator time plus an additional 5 minutes of computational time and subsequently enface renditions are created in real time (15 frames/sec) on a 1 GHz Pentium PC under the Linux operating system.

Citation Download Citation

Jayaram K. Udupa, Dewey Odhner, and Harvey C. Eisenberg "New automatic mode of visualizing the colon via Cine CT", Proc. SPIE 4319, Medical Imaging 2001: Visualization, Display, and Image-Guided Procedures, (28 May 2001); https://doi.org/10.1117/12.428060

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