Ashwatha Narayana, MD, is chair of radiation medicine at Northern Westchester Hospital, where his focus is treating brain tumors, as well as breast, prostate, rectal and skin cancers. He employs advanced forms of radiation therapy, including intraoperative radiation therapy (IORT), given during surgery; high-dose rate brachytherapy, or radioactive implants; and Gamma Knife radiosurgery and stereotactic body radiotherapy, which are high-dose, targeted treatments that limit damage to healthy tissue. A leader in his specialty, Dr. Narayana established the hospital’s skin cancer brachytherapy program and introduced the use of space OAR therapy for newly diagnosed prostate cancer, which reduces the dose of radiation to the rectum. Dr. Narayan...