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The coupling of anisotropy and radial dose functions for 103 Pd and 125 I for use with a commercial treatment planning system
Author(s) -
Prete James J.,
Bice William S.,
Dubois Donald F.,
Prestidge Bradley R.
Publication year - 1997
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.597982
Subject(s) - formalism (music) , brachytherapy , dosimetry , isotropy , radiation treatment planning , anisotropy , point source , physics , computer science , medical physics , computational physics , nuclear medicine , optics , medicine , radiation therapy , radiology , art , musical , visual arts
Many commercial treatment planning systems available today employ traditional dose calculation formulae in their interstitial brachytherapy source calculation algorithms. The 1995 AAPM report on interstitial brachytherapy source dosimetry recommended a new dose calculational formalism and presented a technique for adopting it on systems which embody traditional formalism. In order to comply with these recommendations on our system, the transformations for implementing a one dimensional isotropic point source model were modified by coupling the published anisotropy and radial dose corrections and fitting them to a fifth order polynomial. Using this approach, a more accurate dose calculation is obtained.