A graphical method of avoiding beam blocking by couch supports is described. The technique uses a simplification of the couch cross-section and matrix operations to project the beam into the plane normal to the longitudinal axis of the couch. The algorithm is described, along with a software implementation testing. The application of the software to 3D treatment planning is discussed.
Buckle A. An algorithm for detection of couch-beam intersections. Medical Dosimetry 2005; 30(2):65-68.
Mr. Andrew Buckle, NGH Unit, Newcastle upon Tyne. Tel: +44 (0)191-233-6161.
Regional Medical Physics Department, Freeman Hospital, Newcastle upon Tyne, NE7 7DN, UK.
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