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Evaluation of the dose distribution for prostate implants using various I 125 and P 103 d sources
Author(s) -
Meigooni Ali S.,
Luerman Christine M.,
Sowards Keith T.
Publication year - 2009
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 - 10.1118/1.3095776
Subject(s) - brachytherapy , dosimetry , nuclear medicine , implant , prostate , prostate brachytherapy , histogram , dose rate , medicine , mathematics , medical physics , computer science , radiation therapy , radiology , surgery , cancer , artificial intelligence , image (mathematics)
Recently, several different models ofI125andP103 d brachytherapy sources have been introduced in order to meet the increasing demand for prostate seed implants. These sources have different internal structures; hence, their TG‐43 dosimetric parameters are not the same. In this study, the effects of the dosimetric differences among the sources on their clinical applications were evaluated. The quantitative and qualitative evaluations were performed by comparisons of dose distributions and dose volume histograms of prostate implants calculated for various designs ofI125andP103 d sources. These comparisons were made for an identical implant scheme with the same number of seeds for each source. The results were compared with the Amersham model 6711 seed forI125and the Theragenics model 200 seed forP103 d using the same implant scheme.