A Comparison of Three Different Breath Hold Techniques Used for Reducing Cardiac Dose for Patients Receiving Left-Sided Breast Cancer Radiation Therapy

Abstract

Purpose: Cardiac toxicity is a major concern for left-sided breast cancer patients receiving radiation therapy (RT). Different breath-hold techniques may be used to reduce cardiac dose including voluntary deep inspiration breath hold (vDIBH), the Elekta Active Breathing Coordinator (ABC), and the AlignRT system from VisionRT. The purpose of this study is to evaluate the differences in heart position and mean heart dose for these three techniques during RT of left-sided breast cancer patients.