Valsalva实验结合改良的咽鼓管 MRI倾斜横断位成像在鼻咽癌中的应用  

Application of Valsalva experiment combined with improved eustachian tube MRI tomography tilt in nasopharyngeal carcinoma

作　　者：卓水清[1] 江冬平 刘立志[1] 莫运仙[1] 余静萍[1] 

机构地区：[1]中山大学肿瘤防治中心影像科 华南肿瘤学国家重点实验室 肿瘤医学协同创新中心,广东广州510060

出　　处：《实用放射学杂志》2015年第9期1432-1434,1466,共4页Journal of Practical Radiology

摘　　要：目的：探讨 Valsalva 实验结合改良的 MRI 倾斜横断位成像应用于鼻咽癌（NPC）患者咽鼓管咽口开放功能评价的价值。方法对17例经病理证实的初诊 NPC 患者行 MRI 常规平扫加增强扫描检查后，以与咽鼓管长轴方向平行且显示咽鼓管的旁斜矢状面图像为定位像，设定与咽鼓管长轴平行的双侧倾斜横断位定位线，在咽鼓管部位行 Valsalva 实验前后的斜横断位 T2 WI、T1 WI 扫描，然后分析患者咽鼓管及其周围结构 NPC 侵犯情况，评价咽鼓管开放功能状况。结果Valsalva 实验结合改良的 MRI斜横断位扫描较常规 MR 扫描更能清晰显示咽鼓管的全程结构及周围组织 NPC 侵犯情况，并能够评价NPC患者咽鼓管的开放功能。结论Valsalva 实验结合改良的 MRI 斜横断位成像可实现对咽鼓管的个体化扫描，并可用于 NPC 患者咽鼓管咽口开放功能评价。Objective To discuss the value of Valsalva experiment combined with improved MRI tilt tomography applying on the pharyngeal ostium of eustachian tube opening function of patients with nasopharyngeal carcinoma.Methods 1 7 cases with pathologically proved NPC underwent conventional MRI plain and enhanced scan.In the eustachian tube area oblique transection T2 WI and T1 WI scanning was done before and after the Valsalva experiment.The invasion of eustachian tube and its surrounding structures was analyzed and the eustachian tube function was evaluated.Results Valsalva experiments combined with improved MRI transverse oblique scan could clearly display the whole structure of the eustachian tube and surrounding tissue invasion compared with conventional scanning MR scan.And it could better evaluate the eustachian tube opening function for patients suffered nasopharyngeal carcinoma.Conclusion Valsalva experiments with improved MRI oblique transverse imaging could achieve individualized scan of the eustachian tube,and could be used for evaluating the pharyngeal opening function of eustachian tube in patients with nasopharyngeal carcinoma.

关 键 词：鼻咽癌 磁共振成像 咽鼓管 Valsalva实验 斜横断位 

分 类 号：R739.63[医药卫生—肿瘤] R445.2[医药卫生—临床医学]