摘要
作者对48例首次治疗的鼻咽癌患者采用外照射结合腔内高剂量率近距离治疗。其中计划性内外照射44例,外照射后补量4例。腔内治疗使用 ̄(192)Ir放射源,剂量参考点设在距放射源中心轴0.8~1.5cm处。每次参考点剂量6~8Gy,共1~3次。外照射剂量为60~80Gy。治疗结束时鼻咽癌局部控制率93.8%。1年和2年生存率分别为97.8%和95.5%。作者结合文献对腔内治疗的适应证及内外照射的剂量匹配进行探讨。
new cases of nasopharyngeal carcinoma were treated by external irradiation combined with intracavitary HDR brachytherapy,Of these, intracavitary irradiation combined with external irradiation was given on plan initially in 44 cases,as a supplementary treatment after external irradiation, intracavitary irradiation was given in 4 cases. ̄(192)Ir as radioactive source was used ln brachytherapy,and the point at 0.8 ̄1. 5 cm from the central axis of source was used as a dose reference point. The reference point dose ranging from 6 Gy ̄8Gy each time and a total of l ̄3times was given.The dose of external irradiation was 60 Gy ̄89 Gy.The results showed that the local control rate after completion of treatment was 93.8%, the l year and 2 year survival rate were 97. 8%and 95.5% respectively.The indication of HDR brachytherapy for nasopharyngeal carcinoma and the dose match of external and intracavitary irradiation were discussed.
出处
《实用癌症杂志》
1996年第3期173-175,共3页
The Practical Journal of Cancer
关键词
近距离治疗
外照射
腔内照射
鼻咽癌
Nasopharyngeal carcinoma Brachytherapy External irradiation Intracavitary irradiation