PLAINSBORO, N.J., Nov. 4, 2006 (PRIMEZONE) -- Integra LifeSciences Holdings Corporation (Nasdaq:IART) today announced that its subsidiary Integra Radionics launched its latest radiosurgery software, XKnife(TM) version RT 4.0, at the annual meeting of the American Society for Therapeutic Radiology and Oncology (ASTRO).