The coupling of anisotropy and radial dose functions for 103Pd and 125I for use with a commercial treatment planning system.
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.
Prete
J J
JJ
Radiation Oncology Service, Wilford Hall Medical Center, Lackland AFB, Texas 78236, USA.
Bice
W S
WS
Dubois
D F
DF
Prestidge
B R
BR
D000465:Algorithms; D001918:Brachytherapy; D007457:Iodine Radioisotopes / Q000627:therapeutic use*; D008962:Models, Theoretical; D010165:Palladium / Q000627:therapeutic use*; D011868:Radioisotopes / Q000627:therapeutic use*; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D015203:Reproducibility of Results
D007457:Iodine Radioisotopes; D011868:Radioisotopes; D010165:Palladium