Volume CT of anthropomorphic phantoms using a radiation therapy simulator

Michael D. Silver; Mitsuru Yahata; Yasuo Saito; E. Anne Sivers; S. R. Huang; Bruce M. Drawert; Thomas C. Judd

doi:10.1117/12.59398

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1 June 1992 Volume CT of anthropomorphic phantoms using a radiation therapy simulator

Michael D. Silver, Mitsuru Yahata, Yasuo Saito, E. Anne Sivers, S. R. Huang, Bruce M. Drawert, Thomas C. Judd

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Proceedings Volume 1651, Medical Imaging VI: Instrumentation; (1992) https://doi.org/10.1117/12.59398
Event: Medical Imaging VI, 1992, Newport Beach, CA, United States

Abstract

We interface a Toshiba LX-40A radiation therapy simulator with a custom designed data acquisition system and a 386-PC. The LX-40A includes a 14 inch (35.6 cm) x-ray image intensifier and a 1 inch saticon camera. Two-dimensional cone beam projections of an anthropomorphic chest/lung phantom are collected. The Feldkamp algorithm reconstructs the volume data set into a volume image of the phantom. We discuss several volume computed tomography issues including spatial distortions in the x-ray image intensifier, scatter, and veiling glare. We compare the volume computed tomography results with two-dimensional CT imaging of the same phantom scanned on the equipment.

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Michael D. Silver, Mitsuru Yahata, Yasuo Saito, E. Anne Sivers, S. R. Huang, Bruce M. Drawert, and Thomas C. Judd "Volume CT of anthropomorphic phantoms using a radiation therapy simulator", Proc. SPIE 1651, Medical Imaging VI: Instrumentation, (1 June 1992); https://doi.org/10.1117/12.59398

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