Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10731465 | Physica Medica | 2014 | 8 Pages |
Abstract
Fifty clinical IMRT beams, planned for patients undergoing radiotherapy of pelvic tumors, were used to irradiate a homogeneous phantom. For each beam the agreement between the reconstructed dose, Diso, and the TPS computed dose, Diso,TPS, was well within 5%, while the mean ratio R = Diso/Diso,TPS resulted for 250 tests equal to 1.006 ± 0.036. The same beams were checked in vivo, i.e. during patient treatment delivery, obtaining 500 tests whose average R ratio resulted equal to 1.011 ± 0.042. The γ-analysis of the EPID images with 5% 3 mm criteria supplied 85% of the tests with pass rates γmean â¤Â 0.5 and Pγ<1 â¥Â 90%.
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Authors
S. Cilla, L. Azario, F. Greco, A. Fidanzio, A. Porcelli, M. Grusio, G. Macchia, A.G. Morganti, D. Meluccio, A. Piermattei,