摘要
对放射治疗的 175例T_3和 T_4期鼻咽癌进行临床分析.根据临床表现、CT扫描和 X线检查按长沙会议分期法进行原发灶 T分期.T_3和 T_4期 5 年生存率分别为31.6%(6/19)和19.5%(22/113).局部复发率为40.6%(71/175),死亡的143例中有64例死于复发.临床分析结果表明:鼻咽癌放疗失败的主要原因是局部复发,而复发的重要原因是临床和X线检查无法明确病变范围而造成效疗计划设计的盲目性,CT扫描克服了这些缺点.本组34例采用CT扫描,复发率17.6%,未用CT扫描者 43.3%(P<0.01).
From January 1977 through July 1990,175 patients with T3 and T4 nasopharyngeal carcinoma were treated with radiotherapy. T staging based on ChangSha conference by clinical examination,CT scan and roentgenography. The 5-year survival rates were 31. 6%(6/19) for T3 patients and 19. 5% (22/113) for T4 patients.The local recurrence in this group was 40. 6% (71/175). Sixty-four of 143 dead patients were due to local recurrence. The chief cause of failure and importance of CT scan in the radiotherapy of nasopharyngeal carcinoma are discussed in this report.
关键词
鼻咽肿瘤
放射疗法
CT
临床分析
nasopharyngeal carcinoma
radiotherapy
clinical analysis
CT scan
