3-D dose verification for IMRT using optical CT based polymer gel dosimetry

Abstract

In this study BANG® polymer gels in conjunction with OCTOPUS™ optical CT scanner (MGS Research Inc., Madison, CT) was employed to measure the relative 3D dose distribution of an IMRT treatment. Measured relative dose distributions from the gel measurement were compared with those from treatment planning system calculations and EDR2 film measurements with regard to planar dose distributions in axial, coronal, and sagittal orientations.