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Proceedings Paper

Design and development of C-arm based cone-beam CT for image-guided interventions: initial results
Author(s): Guang-Hong Chen; Joseph Zambelli; Brian E. Nett; Mark Supanich; Cyril Riddell; Barry Belanger; Charles A. Mistretta
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Paper Abstract

X-ray cone-beam computed tomography (CBCT) is of importance in image-guided intervention (IGI) and image-guided radiation therapy (IGRT). In this paper, we present a cone-beam CT data acquisition system using a GE INNOVA 4100 (GE Healthcare Technologies, Waukesha, Wisconsin) clinical system. This new cone-beam data acquisition mode was developed for research purposes without interfering with any clinical function of the system. It provides us a basic imaging pipeline for more advanced cone-beam data acquisition methods. It also provides us a platform to study and overcome the limiting factors such as cone-beam artifacts and limiting low contrast resolution in current C-arm based cone-beam CT systems. A geometrical calibration method was developed to experimentally determine parameters of the scanning geometry to correct the image reconstruction for geometric non-idealities. Extensive phantom studies and some small animal studies have been conducted to evaluate the performance of our cone-beam CT data acquisition system.

Paper Details

Date Published: 2 March 2006
PDF: 12 pages
Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 614210 (2 March 2006); doi: 10.1117/12.653197
Show Author Affiliations
Guang-Hong Chen, Univ. of Wisconsin, Madison (United States)
Joseph Zambelli, Univ. of Wisconsin, Madison (United States)
Brian E. Nett, Univ. of Wisconsin, Madison (United States)
Mark Supanich, Univ. of Wisconsin, Madison (United States)
Cyril Riddell, GE Healthcare Technologies (France)
Barry Belanger, GE Healthcare Technologies (United States)
Charles A. Mistretta, Univ. of Wisconsin, Madison (United States)

Published in SPIE Proceedings Vol. 6142:
Medical Imaging 2006: Physics of Medical Imaging
Michael J. Flynn; Jiang Hsieh, Editor(s)

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