CAJ | 학술논문

目的　改进乳腺癌术后锁骨腋窝照射野的技术，减少肺部放射性损伤的发生。方法　对乳腺癌术后放射治疗的50例患者锁骨腋窝野下界进行改进，并与常规野放射治疗的111例患者进行对比，观察并分析两者对肺损伤的影响。结果　改进后减少肺照射面积22.49?cm2（t=20.87，P<0.001)。减少肺照射体积55.30?cm3(t=65.37，P<0.001)，肺的放射性损伤显著降低，区域淋巴结转移无增加。结论　锁骨腋窝野下界缩小，显著降低了肺部放射性损伤并有效控制了区域淋巴结转移。
목적　개진유선암술후쇄골액와조사야적기술，감소폐부방사성손상적발생。방법　대유선암술후방사치료적50례환자쇄골액와야하계진행개진，병여상규야방사치료적111례환자진행대비，관찰병분석량자대폐손상적영향。결과　개진후감소폐조사면적22.49?cm2（t=20.87，P<0.001)。감소폐조사체적55.30?cm3(t=65.37，P<0.001)，폐적방사성손상현저강저，구역림파결전이무증가。결론　쇄골액와야하계축소，현저강저료폐부방사성손상병유효공제료구역림파결전이。
Objective　To reduce the lung injury by modification of supraclavicular-axillary irradiation after mastectomy for breast cancer. Methods　The effect of supraclavicular-axillary field on radiation induced-lung injury was analyzed in 111 patients treated with routine supraclavicular-axillary field compared to 50 patients with modified lower border of supraclavicular-axillary field. Results　The irradiated lung volume was decreased from 55.3 cm2 to 22.5 cm2 (P<0.001) after modification of the supraclavicular-axillary field. The radiation induced-lung injury was significantly decreased without increase of the locoregional lymphatic metastasis. Conclusions　The modified inferior border of supraclavicular-axillary field decreases the radiation induced-lung damage and is effective in controlling the locoreginal lymphatic metastasis.