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一、概念立体定向放射外科(Radiosurgery)这一概念是由leksell于1951年首先提出,系将他在1949年所设计的立体定向框架与一种特制准直仪配套使用。这种准直仪安装在X线球管支架
I. The concept of stereosurgery Radiosurgery was first proposed by leksell in 1951. He used the stereotactic frame he designed in 1949 in conjunction with a special collimator. This collimator is mounted on the X-ray tube holder