Title :
Comparison of palladium-103 prostate implant dose distributions using a novel prostate phantom and commercial treatment planning software incorporating TG-43 formalism
Author :
Scarfone, C. ; Coffey, C.W., II ; Duggan, D.M. ; Gonzalez, A.L.
Author_Institution :
Dept. of Radiat. Oncology, Vanderbilt Univ. Med. Center, Nashville, TN, USA
Abstract :
In this study the authors investigate the dose distribution surrounding a 15 seed Palladium-103 (103Pd) implant positioned within a novel anthropomorphic prostate phantom using radiochromic film dosimetry. Experimental dose measurements are compared to calculated values using TG-43 formalism implemented on a commercial treatment planning system. Dose rates for a single 103Pd seed commissioned in the treatment planning software are within 5% of those reported by Task Group 43 at radial distances from 5 mm to 30 mm. Film dosimetry results agree reasonably well with calculated values for a 15 seed prostate model. The results indicate that film dosimetry has potential as a high-resolution dosimetry technique for low energy brachytherapy sources
Keywords :
biological organs; dosimetry; medical computing; palladium; radiation therapy; radioisotopes; 5 to 30 mm; 103Pd; Pd; TG-43 formalism; anthropomorphic prostate phantom; commercial treatment planning software; commercial treatment planning system; dose rates; experimental dose measurements; low energy brachytherapy sources; prostate implant dose distributions; radiochromic film dosimetry; therapeutic nuclear medicine; treatment planning software; Anthropomorphism; Brachytherapy; Dosimetry; Geometry; Imaging phantoms; Implants; Quality assurance; Radioactive decay; Radioactive materials; Torso;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.901439
