Dosimetric Comparison and Evaluation of 4 Stereotactic Body Radiotherapy Techniques for the Treatment of Prostate Cancer.

ABSTRACT:

Purpose

The aim of this study was to compare dosimetric characteristics, monitor unit, and delivery efficiency of 4 different stereotactic body radiotherapy techniques for the treatment of prostate cancer.

Methods

This study included 8 patients with localized prostate cancer. Dosimetric assets of 4 delivery techniques for stereotactic body radiotherapy were evaluated: robotic CyberKnife, noncoplanar intensity-modulated radiotherapy, and 2 intensity-modulated arc therapy techniques (RapidArc and Elekta volumetric-modulated arc therapy). All the plans had equal treatment margins and a prescription dose of 35 Gy in 5 fractions.

Results

Statistically significant differences were observed in homogeneity index and mean doses of bladder wall and penile bulb, all of which wer

SUBMITTER: Seppala J 

PROVIDER: S-EPMC5616037 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature