2017_IGRT course book

MRG-RT: Breast

MR-IGRT APBI Approach

Patient characteristics: Women with Stage 0-1 breast cancer, status post lumpectomy, appropriate candidates for APBI, who were not eligible for brachytherapy. Enrolled on institutional registry. (N = 30 patients) Treatment: MR-IGRT APBI, 38.5 Gy/10 fx BID Treatment planning: CT and MRI simulation (Supine, arms up, AC, Lucite brackets) PTV = CTV = Cavity + 1 cm

Cavity localization on volumetric MRI prior to each fraction Continuous cine acquisition during delivery of each fraction Patient time in room per fraction: mean 36 minutes

Courtesy of Maria Thomas, MD, PhD

ESTRO IG and Adaptive Course Parikh 02.11.2017