TITLE:
Dosimetric Evaluation of Treatment Plans of 3DCRT & IMRT in Prostate Cancer EBRT
AUTHORS:
Abdur Rehman, Muhammad Kamran Rasheed Nasir, Nouman Amjad, Babar Hussain
KEYWORDS:
3DCRT, 6MV & 15MV, IMRT, PO, PSV, PTV, OARs
JOURNAL NAME:
Open Access Library Journal,
Vol.9 No.12,
December
30,
2022
ABSTRACT: This study aims to compare 3DCRT & IMRT plans for two groups of prostate cancer patients i.e. “Prostate Only (PO) group” means the planning target volume includes the prostate & a margin of 1 cm from all sides except 0.6 cm from the posterior side & “Prostate + Seminal Vesicles (PSV) group” means the PTV includes Prostate & Seminal Vesicles surrounded with a margin of 1 cm from all sides except 0.6 cm from the posterior side. Total of 17 patients has been studied. Among them, 9 patients belong to PO group and 8 patients are in PSV group. In this study, 5 beams plan is used for 3DCRT planning while 7 beams plan is used for IMRT planning. This study declares the superiority of IMRT against 3DCRT technique in both PO & PSV groups. The conformity of PTV achieved in IMRT is much more than 3DCRT, while IMRT lags 3DCRT in dose homogeneity to PTV. Also, in IMRT, the OARS are safer than in 3DCRT. 3DCRT planning is done with Prowess Panther and IMRT planning with KonRad.