目的探讨半肝交替三维立体定向适形放射治疗在肝脏广泛转移性肿瘤中的应用价值。

Objective To evaluate the application of semi-liver alternate and three-dimensional conformal radiotherapy on patients with liver widespread metastatic cancer.

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结论三维适形放射治疗可能提高直肠癌患者的生存率，改善其生存质量。

Conclusion Three-dimensional conformal radiotherapy is able to prolong the survival and improve the life quality of patients with rectal cancer.

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目的分析三维适形放疗(3dcrt)与立体定向放射外科(SRS)对于不能手术切除或拒绝手术治疗的脑胶质瘤的疗效。

Objective To analyze the result of the 3 dimensional conformal radiation therapy (3dcrt) and the stereotactic radiosurgery (SRS) for the glioma of the brain.

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