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目的观察头部γ-刀单次大剂量治疗脑转移瘤的近期疗效和放射反应。方法对32例(90个病灶)脑转移瘤采用国产旋转式头部γ-刀治疗。照射剂量肿瘤边缘(40%~70%剂量线)12~20Gy,肿瘤中心剂量24~40 Gy。结果治疗结束后1~6个月复查MRI,肿瘤体积变化总有效率为88.9%(80/90)。完全缓解率为47.8%(43/90),部分缓解率为32.2%(29/90),无变化18个病灶。结论头部γ-刀治疗脑转移瘤近期疗效肯定,是一种有效、安全的治疗方法。
Objective To observe the short-term curative effect and radiation response of head γ-knife single high-dose treatment of brain metastases. Methods 32 cases (90 lesions) of brain metastases using domestic rotary head γ-knife treatment. Radiation dose of tumor edge (40% ~ 70% dose line) 12 ~ 20Gy, tumor center dose of 24 ~ 40 Gy. Results MRI was reviewed 1 to 6 months after the end of treatment. The total effective rate of tumor volume change was 88.9% (80/90). The complete remission rate was 47.8% (43/90), partial remission rate was 32.2% (29/90), no change in 18 lesions. Conclusion Head γ-knife treatment of brain metastases certain positive effect, is an effective and safe treatment.