TU‐E(SAM)‐211‐02: Role of the Medical Physicist in Clinical Implementation of Breast Tomosynthesis

Abstract

FDA recently approved Hologic Selenia Dimensions Tomosynthesis system for 3 dimensional breast imaging. Many new systems will be installed in the near future. To properly support the implementation of this new modality, clinical physicists need to understand unique operation conditions of the tomosynthesis system, shielding requirements, factors affecting image quality and patient dose, sources of image artifacts, in addition to knowing the basic principles of tomosynthesis image acquisition and reconstruction.This talk will focus on the implementation and acceptance test of Hologic Selenia Dimensions tomosynthesis system. The operation modes, typical acquisition parameters, x‐ray beam characteristics, system performance in terms of image quality and patient dose will be described. The impact of unique imaging acquisition parameters on shielding requirements will be discussed. The acceptance tests which are unique to the tomo modes will be illustrated.Learning objectives:1. Understand the typical operation modes of Hologic tomo system and image acquisition parameter range.2. Understand the achievable system performance of Hologic tomo system in terms of image quality and patient dose.3. Understand the impact of the unique tomo image acquisition parameters on room shielding requirement4. Understand major factors influencing the image quality and patient dose5. Know how to perform the acceptance test.