[Therapy for intracranial lesions by gamma knife].

The authors summarized 281 patients with intracranial lesions treated by gamma knife (GK) during Sept. 1995-Sept. 1996. The patients included 170 males and 111 females with age ranging from 5 to 85 years (average of 49.9 years). Seventy-seven patients received a follow-up 3.3-12.5 months. The average of Karnofsky Performance Status was 70.8 in pre-operation and 83.9 in post-operation; the average of tumor volume was 17.1 cm3 in pre-operation and 13.6 cm3 in post-operation; the average of lesion diameter was 2.8 cm and 2.4 cm in pre- and post-operation. respectively. GK radiosurgery has achieved the goal to improve the quality of life and to prolong the life of those patients with malignant intracranial tumors.