Initial experience with a commercial cone beam optical CT unit for polymer gel dosimetry II: Clinical potential

Abstract

Gel dosimetry has been shown to have a great potential for 3D dosimetry for treatment delivery validation of conformal plans, particularly after the development of more spatially stable polymer-based dosimeters. However, despite its promise, gel dosimetry has not come into widespread clinical use, in part because of limited access to imaging modalities (particularly MRI) for dose readout. In this paper we present some initial investigations of the clinical potential of a Vista cone beam optical CT unit (Modus Medical, London, Canada) in conjunction with various polymer gel dosimeters.