In vivo dosimetry as a part of quality assurance program for breast cancer irradiation

Purpose: The study was aimed to check treatment accuracy and definition of action levels during implementation of in vivo dosimetry as a part of quality assurance program. Treatment accuracy was quantified as the ratio of the measured dose at accelerator and the expected dose from the treatment planning system (TPS). The study sampled 3D conformal breast patients with two isocentric tangential half-field technique with at least two fields....