TY - JOUR ID - 57884 TI - A Geant4 study on dosimetric comparison between three kinds of radioactive esophageal stents to be used in treatment of advanced esophageal cancers JO - Radiation Physics and Engineering JA - RPE LA - en SN - 2645-6397 AU - ‎Rafiepour, ‎P‎ayam AU - ‎Sheibani, ‎Sh‎ahab AU - ‎Rezaey Uchbelagh, ‎D‎aryiush AU - Poorbaygi, ‎H‎ossein AD - Department of Nuclear Engineering and Physics‎, ‎Amirkabir University of Technology‎, ‎Tehran‎, ‎Iran AD - Nuclear Science Research School‎, ‎Nuclear Science and Technology Research Institute NSTRI‎, ‎Tehran‎, ‎Iran Y1 - 2020 PY - 2020 VL - 1 IS - 1 SP - 13 EP - 18 KW - ‎Advanced esophageal cancer KW - ‎Radioactive stent KW - ‎Brachytherapy KW - ‎Dosimetry KW - ‎Geant4‎ DO - 10.22034/rpe.2020.57884 N2 - ‎Utilizing radioactive stents is a usual method for treatment of advanced esophageal cancer‎. ‎It is necessary to investigate the dose distribution of radioactive esophageal stents before the clinical use‎. ‎This study presents a dosimetric comparison between three radioactive esophageal stents‎: ‎I-125 seed-loaded stent‎, ‎iodine-eluting stent and double-layered iodine-eluting stent‎. ‎Depth-dose and angular dose distributions were carried out using Geant4 toolkit‎. ‎Moreover‎, ‎the effect of interval distance between two adjacent seeds on the dose distribution was investigated‎. ‎Esophageal stents loaded with I-125 seeds seems to be better than iodine-eluting stents‎, ‎with the distance less than 15 mm between two adjacent seeds‎. UR - https://rpe.kntu.ac.ir/article_57884.html L1 - https://rpe.kntu.ac.ir/article_57884_1402e5658ec4b5a1e0cc77a993af45dd.pdf ER -