摘要
目的:探讨局部复发鼻咽癌(LRNPC)的MRI表现特征及其临床意义。方法:回顾性分析86例LRNPC患者的MRI资料,其中47例经病理确诊,39例无组织学证据,根据系列MRI及临床诊治确诊。结果:①复发部位:鼻咽部40例(46.5%),鼻咽部以外46例(53.5%),多部位受累67例(78%),39例(45.3%)完全为深部组织复发。②病变的信号特征:在短时反转恢复序列(STIR)上,15例呈明显高信号(17.4%),54例呈稍高信号(62.8%),10例呈混杂信号(11.6%),7例呈低信号(8%)。③24例(27.9%)合并肌肉的去神经改变,16例为肿瘤复发所致,8例为放疗后遗症。④对比81例首程放疗前的MRI,74例(91%)为原病变处复发,7例(9%)为原病变以外部位复发。⑤MRI诊断符合率:57例(66%)首诊正确,29例(34%)漏诊。结论:MRI对于LRNPC尤其是深部组织复发的诊断,有着不可替代的作用,可为早期及时治疗提供重要信息。应作为评价LRNPC的首选检查手段。
Objective:To investigate the MRI features of local recurrent nasopharyngeal carcinoma(LRNPC) and to evaluate its clinical significance.Methods:The MRI and clinical materials of 86 patients with LRNPC were retrospectively analyzed.47 patients had pathology diagnosis,39 patients were diagnosed according to MRI and clinical manifestations and their responses after treatment.Results:①Location of recurrence included within nasopharynx(n=40,46.5%);beyond nasopharynx(n=46,53.5%);multiple sites involvement(n=67,78%...
出处
《放射学实践》
北大核心
2011年第1期17-21,共5页
Radiologic Practice
关键词
鼻咽肿瘤
肿瘤复发
局部
放射疗法
计算机辅助
磁共振成像
Nasopharyngeal neoplasms
Neoplasm recurrence
local
Radiotherapy
computer-assisted
Magnetic resonance imaging
