Australasian brachytherapy audit: Results of the 'end-to-end' dosimetry pilot study

Abstract

Introduction We present the results of a pilot study to test the feasibility of a brachytherapy dosimetry audit. Methods The feasibility study was conducted at seven sites from four Australian states in both public and private centres. A purpose-built cylindrical water phantom was imaged using the local imaging protocol and a treatment plan was generated to deliver 1 Gy to the central (1 of 3) thermoluminescent dosimeter (TLD) from six dwell positions. Results All centres completed the audit, consisting of three consecutive irradiations, within a 2-h time period, with the exception of one centre that uses a pulsed dose rate brachytherapy unit. All TLD results were within 4.5% of the predicte..