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４８例肺癌胞转移瘤放疗后总的症状缓解率为８７．５％。全脑照射２０一３０Ｇｙ（Ａ组）、３１～４０６ｙ（Ｂ组）以及３１～４０６ｙ＋缩野补充照射２０一３０Ｇｙ（Ｃ组）的症状缓解率分别为９０．０％、９２．９％和９７．６％，三组间差异无统计学意（Ｘ２＝１．９６ｐ＝０．３７５６）。Ａ、Ｂ、Ｃ三组的症状完全缓解率分别为４７．５％、７８．６％和８０．５％，Ａ组与Ｂ组、Ａ组与Ｃ组之间差异有统计学意义；Ｂ组与Ｃ组之间差异无统计学意义。建议对于全身情况差、估计生存期短的病人，全脑照射时采用较低剂量短疗程的放射治疗方案，如２０一３０Ｇｙ／１一２周或２０一３０Ｇｙ／２一３周；全身情况较好，无颅外远处转移的单个脑转移灶、宜用高剂量放射方案，对于不能手术的单个脑转移灶，尽可能局部追加照射至５０～６０Ｇｙ，能手术者，应尽早手术，术后常规全脑照射３１一４０Ｇｙ／３一４周。
48 cases of lung cancer metastases after radiotherapy, the overall symptom response rate was 87.5%. Symptom remission rates were 90.0%, 92.9% and 97% for whole brain irradiation at 20 to 30 Gy (group A), 31 to 406 y (group B), and 31 to 406 y + .6%, no significant difference between the three groups (X2 = 1.96p = 0.3756). The complete remission rate of group A, B and C was 47.5%, 78.6% and 80.5% respectively. There was significant difference between group A and group B, group A and group C. Group B There was no significant difference between C group and C group. Recommendations for patients with poor general condition, short survival expectancy, whole-brain irradiation with a lower dose of short-course radiotherapy programs, such as 20 to 30 Gy / 1 to 2 weeks or 20 to 30 Gy / 2 to 3 weeks; systemic conditions Good, no extracranial distant metastasis of a single brain metastasis, should use high-dose radiation program, for inoperable single brain metastases, as far as possible additional local irradiation to 50 ~ 60Gy, who can surgery, surgery should be as soon as possible after surgery Conventional whole brain irradiation 31 a 40Gy / 3 a 4 weeks.