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

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

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.

Citation Download Citation

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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