CT与MRI诊断鼻咽癌的对比研究  

Competitively study of nasopharyngeal carcinoma diagnosis by CT or MRI

作　　者：唐曦[1] 胡国清[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院,湖北武汉430030

出　　处：《山东医药》2005年第6期17-19,共3页Shandong Medical Journal

基　　金：国家自然科学基金资助项目 (No.3 0 470 5 2 5 )

摘　　要：目的　探讨鼻咽癌向周围邻近结构侵犯的 CT和 MRI表现 ,并比较其诊断价值。方法　分析经病理证实的 2 1例 NPC患者 CT和 MRI资料。结果　鼻咽癌瘤体 T1 WI等信号 14例 (6 6 .7% ) ,T2 WI高信号 18例(85 .7% ) ,增强 T1 WI高信号 9例 (10 0 % )。CT、MRI显示鼻咽癌以下结构的浸润率有显著性差异 :完全茎突后间隙、颅骨和海绵窦 (P值分别为 0 .0 15 ,0 .0 0 0和 0 .0 17)。副鼻窦检出率分别为 14 .3%和 4 .8% ,但 P值为 0 .14 3。其余结构两者检出无统计学差异。结论　以 MRI为鼻咽癌患者首选影像学检查 ,可更准确了解肿瘤侵犯范围。Objective To investigate CT and MRI features in the diagnosis of nasopharynged carcinoma(NPC) with the adjacent structures involvement out of nasopharynx ,and compare the value between CT and MRI in NPC.Methods Twenty-one cases with NPC proven by pathology were reviewed.All underwent CT and MRI examination in one week before treatment.Results The tumor of 14 cases (66.7%) displayed iso-intense signal intensity (compared with muscles) on T 1-weighed images,18 cases (85.7%) hyper-intense signal intensity on T 2-weighed images,9 cases (100%) hyper-intense signal intensity on contrast-enhanced T 1-weighed images.The involvement rates of the following structures which showed on CT and MRI had obviously different:whole post-styloid involvement,the skull base erosion and cavernous sinus (P=0.015,0.000,0.017,respectively).The rates of paranasal sinuses invasion were 14.3% by CT and 4.8% by MRI,but P value was 0.143.The others had no significance.Conclusion MRI is the preferred technique in NPC.

关 键 词：鼻咽肿瘤 X线计算机体层摄影术 磁共振成像 CT诊断 

分 类 号：R739.63[医药卫生—肿瘤] R730.4[医药卫生—临床医学]