早期非小细胞肺癌的立体定向放射治疗

Stereotactic radiotherapy of early stage non-small-cell lung cancer

对早期非小细胞肺癌（NSCLC），立体定向放射治疗（SRT）是一有效的手术替代治疗方法。SRT的疗效和手术结果相当，严重并发症不高，但多数病例治疗后可引起病灶部位纤维变。合适病例为直径〈5cm并且远离食管、气管或主支气管的病灶，生物等效剂量应达到100Gy为宜。

Stereotatic radiotherapy （SRT） is an efficient substitution of surgery for the treatment of early stage non-small-cell lung cancer with equivalent tumor control and survival. Isolated fibrosis appears in most patients after SRT. Severe complications are rare. The best candidates are those lesions which are 5cm or less in diameter and non-centrally located. Biologically effective dose of 100 Gy is recommended.