摘要
从1992年7月至1994年12月,56例Ⅰ,Ⅱ期鼻咽癌作外照射(鼻咽D_T56~60Gy/28~30次/5.6~6周)加腔内后装治疗(24Gy/3次/2周),另配对56例作单纯外照射(鼻咽D_T66~70Gy/33~35次/6.6~7周)。经治疗计划系统绘测的剂量分布图显示,外照射加腔内后装综合放疗的鼻咽剂量为70-80Gy,鼻腔后份和茎突前间隙的剂量为60~70Gy。提示腔内后装配合外照射可适用于鼻咽腔内肿瘤或侵犯鼻腔后份以及部分茎突前间隙的病例。
From Jul. 1992 to Dec.1994,56 patients with stageⅠand Ⅱ nasopharyngeal cacinoma weretreated using a combination of external beam and intracavitary brachytherapy(combined radiothgerapygroup).The result;were compared to another matching group of 56 patients given external beam therapyalone(control grotip).The composite isodoses diagram of external beam and intracavitary brachytherapy hasrevealled that treatment doses at the nasopharyngeal cavity ranged from 70 to 80Gy and at the postnasal cav-ity and the anterior styloid space ranged from 60 to 70Gy.It wcqs suggestd that the indication of intracavi-tary brachytherapy for NPC is the tumor confined to the nnsopharynx or the turnor extended to postnasalccqvity and part of cqnterior styloid space.
出处
《癌症》
SCIE
CAS
CSCD
北大核心
1996年第2期124-125,共2页
Chinese Journal of Cancer
基金
国家科委(鼻咽癌八五攻关)资助课题
关键词
鼻咽肿瘤
剂量分布
放射疗法
外照射
Nasopharyngeal ccqcinoma Radiotherapy Intracavitary brachytherapy Dosedistribution