Adjustable field shaping for external-beam radiation therapy
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1Department of Radiology, University of South Alabama College of Medicine, Mobile 36688.
Radiology
|March 1, 1990
Abstract:
A new, simple method for adjustable field shaping for external-beam radiation therapy is described. The system employs shielding blocks attached to specially designed flanges and blocking tray. The system allows a wide latitude of placement of the blocks on the tray. The blocking system is cost-effective and allows rapid setup of treatment fields. It also allows daily blocking adjustment if required and has been shown to produce high-quality reproducible fields in clinical use.