Oklahoma CyberKnife, a cancer treatment center located in Tulsa, Oklahoma, treated its 1,000th patient this week. Since opening in 2008, the center has provided advanced cancer treatments using CyberKnife radiosurgery and stereotactic body radiation therapy to patients throughout the Midwest from states including Missouri, Kansas, Arkansas and Oklahoma. Approximately 35% of patients traveled from outside the primary service area to receive treatment at Oklahoma CyberKnife.