Investigation of Helical Tomotherapy for Partial-Breast Irradiation of Prone-Positioned Patients

Helical tomotherapy can provide conformal and uniform target-dose coverage simultaneous with adequate sparing of critical structures; in this study only the contralateral breast dose exceeded RTOG 0413 guidelines. Dosimetric results for our 4 prospective patient cases were consistent with those for our 10-case pilot study.