[OA243] 3D Dose distribution in two clinical digital breast tomosynthesis units: A phantom study

Purpose null Measurements of the dose volume distribution in digital breast tomosynthesis (DBT) are lacking. They are useful for validation of Monte Carlo simulations in DBT dosimetry and also for devising models of radio-induced cancer risk in DBT exams. Due to the different scanner protocols (scan angle and spectra) the dose distribution can vary among DBT units and its determination is useful in scanner optimization and performance...