Incidental Dose to Pelvic Nodal Regions in Prostate-Only Radiotherapy.

ABSTRACT:

Objectives

Pelvic lymph nodal regions receive an incidental dose from conformal treatment of the prostate. This study was conducted to investigate the doses received by the different pelvic nodal regions with varying techniques used for prostate radiotherapy.

Methods and materials

Twenty patients of high-risk node-negative prostate cancer treated with intensity-modulated radiotherapy to the prostate alone were studied. Replanning was done for intensity-modulated radiotherapy, 3-dimensional conformal treatment, and 2-dimensional conventional radiotherapy with additional delineation of the pelvic nodal regions, namely, common iliac (upper and lower), presacral, internal iliac, obturator, and external iliac. Dose-volume parameters such as Dmean, D100%, D66%, D33%, V40, and V50

SUBMITTER: Murthy V 

PROVIDER: S-EPMC5616032 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature