The Importance of 3-dimensional CT Treatment Planning to Optimize Outcomes From Accelerated Partial Breast Irradiation (APBI) With Brachytherapy in Early Stage Breast Cancer

Objective/Purpose While we await outcomes from randomized studies, APBI has seen increasing use as an alternative to whole breast irradiation (WBI) after lumpectomy for early stage breast cancer. Recently, there has been concern generated about excess toxicity associated with brachytherapy APBI. Multi-catheter (MCT) brachytherapy, as the initial APBI method developed, has the longest follow-up and provides a means for looking at late outcomes.