A Clinical Trial in Improving External Irradiation Technique for Head-neck Neoplasms
- VernacularTitle:改进头颈部恶性肿瘤外照射放疗技术的临床观察
- Author:
Baqun HUANG
;
Shishan YANG
;
Gengchun LIU
- Publication Type:Journal Article
- Keywords:
Head-neck neoplasms;
Radiotherapy;
External irradiation;
Cerrobend block
- From:
Journal of Chinese Physician
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To improve the external irradiation technique for Head-neck neoplasms.Methods 95 patients with Head-neck neoplasms confirmed by pathology,were fixed with head pillow mask , isocenter irradiation,technique utilizing cerrobend block.Radical therapy dose was 72 (70~80)Gy/35~40 fractions in 7~8 weeks for general carcinoma and 50~55Gy/28~31 fractions in 5 6~6 2 weeks for NHL .Preventive dose was 56 (50~60)Gy/25~30 fractions in 5~6 weeks for general carcinoma and 45~50Gy/25~28 fractions in 5~5 6 weeks for NHL.A short and a long-term clinical outcome, acute and late radiation reactions were observed.Results After 1~2 months following radiation therapy,CT scans revealed that the primary lesion complete remission rate was 58 57% , and obvious remission rate was 32 86%.The normal mucous membrane acute radiation reaction rates were G0 56 84% , GⅠ 42 10% , GⅡ 1 05%,respectively.After 1~2 years following radiation therapy,the spinal cord and brain stem radiation injury rate was zoro.Conclusions The improving external irradiation technique may elevate local control rate better,and reduce radiation reactions of patients with head-neck neoplasms.