Dosimetric comparison of HDR Co-60 and Ir-192 brachytherapy sources by model-based dose calculation algorithms and its clinical implication in different brachytherapy sites and techniques.
INTRODUCTION Numerous dosimetric studies have reported clinically insignificant differences between iridium-192 and cobalt-60. However, such comparison studies were conducted using TG-43 algorithms where heterogeneity is not accounted. Model based dose calculation algorithms (MBDCA) significantly improve dosimetric acc...