Development of portal CT reconstruction using MLS-ART technique and the kinestatic charge detector imaging system: I. Low-energy x-ray studies

M. Waleed Gaber; Huaiqun Guan; Frank A. DiBianca; Sanjiv S. Samant; Yunping Zhu

doi:10.1117/12.317077

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24 July 1998 Development of portal CT reconstruction using MLS-ART technique and the kinestatic charge detector imaging system: I. Low-energy x-ray studies

M. Waleed Gaber, Huaiqun Guan, Frank A. DiBianca, Sanjiv S. Samant, Yunping Zhu

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Proceedings Volume 3336, Medical Imaging 1998: Physics of Medical Imaging; (1998) https://doi.org/10.1117/12.317077
Event: Medical Imaging '98, 1998, San Diego, CA, United States

Abstract

We investigate the use of the kinestatic charge detector (KCD) together with the multi-level scheme algebraic reconstruction technique (MLS-ART) for computer tomography (CT) reconstruction, to be used in position verification in radiotherapy. The KCD offers very good contrast resolution, which is especially useful given the low number of projections we are aiming at. We present the images reconstructed using a head phantom (Rando-phantom) using a total of 95 projections, and a standard low contrast CT phantom using 63 projections. The reconstruction was carried out using MLS-ART technique, in this technique satisfactory images are generally obtained after one or two iteration, which in effect makes ART a noniterative algorithm. We also present the CT images obtained using the back projection technique for comparison purposes.

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M. Waleed Gaber, Huaiqun Guan, Frank A. DiBianca, Sanjiv S. Samant, and Yunping Zhu "Development of portal CT reconstruction using MLS-ART technique and the kinestatic charge detector imaging system: I. Low-energy x-ray studies", Proc. SPIE 3336, Medical Imaging 1998: Physics of Medical Imaging, (24 July 1998); https://doi.org/10.1117/12.317077

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