Journal article

Comparison of four 3D conformal treatment techniques to optimise radiotherapy treatment for anal cancer.

Alison Cray, Cathy Markham, Michelle Ryan, Alan Herschtal, Samuel Y Ngan, Sarat Chander

J Med Radiat Sci | Published : 2014

Abstract

INTRODUCTION: Chemoradiotherapy is the standard of care for anal cancer. Sizeable target volume leads to significant toxicity. We compared four different 3D conformal radiotherapy (3DCRT) techniques with the aim of finding the best technique to achieve the lowest dose to the organs at risk (OAR) without compromising the planning target volume (PTV) coverage. METHODS: Fifteen computed tomography (CT) data sets from previously treated anal cancer patients (five male and 10 female) were re-contoured according to the Australasian Gastrointestinal Trials Group (AGITG) anal cancer contouring guidelines for N3 disease. Four different 3DCRT plans for each CT data set (standard, V-shape, diamond shap..

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