2 March 2006 Design and development of C-arm based cone-beam CT for image-guided interventions: initial results
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Proceedings Volume 6142, Medical Imaging 2006: Physics of Medical Imaging; 614210 (2006); doi: 10.1117/12.653197
Event: Medical Imaging, 2006, San Diego, California, United States
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.
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Guang-Hong Chen, Joseph Zambelli, Brian E. Nett, Mark Supanich, Cyril Riddell, Barry Belanger, Charles A. Mistretta, "Design and development of C-arm based cone-beam CT for image-guided interventions: initial results", Proc. SPIE 6142, Medical Imaging 2006: Physics of Medical Imaging, 614210 (2 March 2006); doi: 10.1117/12.653197; https://doi.org/10.1117/12.653197
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KEYWORDS
Sensors

Calibration

Data acquisition

X-ray computed tomography

Image restoration

Image-guided intervention

Spatial resolution

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