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Experimental evaluation of the accuracy of skin dose calculation for a commercial treatment planning system.


ABSTRACT: This work investigates the accuracy of skin dose calculations using the Eclipse treatment planning system. Skin dose was measured using micro-MOSFETs for a range of irradiation conditions (open fields, physical wedges, dynamic wedges, different SSDs) for 6MV and 10MV beams, and compared with the mean dose calculated to a 2mm thick "skin" structure for semi-cylindrical phantoms (representative of a neck or breast). Agreement between the calculated and measured skin dose values was better than +/-20% for 95% of all measured points (both 6MV and 10MV x-ray spectra). For a fixed geometry, the TPS correctly calculated relative changes in dose, showing that minimization of skin dose in IMRT will be effective in Eclipse.

SUBMITTER: Court LE 

PROVIDER: S-EPMC5721536 | biostudies-other | 2008 Jan

REPOSITORIES: biostudies-other

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Experimental evaluation of the accuracy of skin dose calculation for a commercial treatment planning system.

Court Laurence E LE   Tishler Roy B RB   Allen Aaron M AM   Xiang Hong H   Makrigiorgos Mike M   Chin Lee L  

Journal of applied clinical medical physics 20080128 1


This work investigates the accuracy of skin dose calculations using the Eclipse treatment planning system. Skin dose was measured using micro-MOSFETs for a range of irradiation conditions (open fields, physical wedges, dynamic wedges, different SSDs) for 6MV and 10MV beams, and compared with the mean dose calculated to a 2mm thick "skin" structure for semi-cylindrical phantoms (representative of a neck or breast). Agreement between the calculated and measured skin dose values was better than +/-  ...[more]

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