SUNNYVALE, Calif.--(BUSINESS WIRE)--Results of a long-term clinical study conducted in Salzburg, Austria, bolsters support for a promising change in radiation therapy for breast cancer patients. According to a report from Breast Center Salzburg published in the International Journal of Cancer, radiation administered during surgery, directly at the site of the excised tumor, greatly reduces the incidence of ipsilateral (same side) breast tumor recurrence. The findings were delivered by Dr. Felix Sedlmayer, chairman of radiation oncology at the University of Salzberg, on Oct. 8 at a special meeting of the European Chapter of the International Society of IORT held at the ESTRO25 (European Society for Therapeutic Radiation and Oncology) conference in Leipzig, Germany.