Three Fraction Accelerated Partial Breast Irradiation as the Sole Method of Radiation Therapy for Low-risk Stage 0 and I Breast Carcinoma

"* TRI-APBI simulation must take place no more than 8 weeks from final definitive breast surgery~* Machines that could be used include: SAVI applicator, The ViewRay System for Radiation Therapy, The ViewRay (MRIdian) Linac System, Halcyon, True Beam, True Beam STx, Edge Radiotherapy Delivery System"

-Standard of Care