摘要
目的 探讨三叉神经痛神经患者的MR表现及其诊断价值。方法 应用三维时间飞跃(3D TOF)序列 ,结合SE及快速液体衰减反转恢复 (FLAIR)序列 ,回顾性分析了 10 4例三叉神经痛患者MR表现及手术结果。结果 (1) 10 4例三叉神经痛患者中MRI诊断为血管压迫或接触的为 75例 ,术中证实有血管压迫或接触的为 6 9例 ;桥小脑角肿瘤共 14例 ,MRI确诊 13例 ,另 1例由手术确诊 ;血管性病变的为 5例 ,均由微血管减压术或手术病理证实 ;(2 )三叉神经痛病因中血管压迫或接触、肿瘤性病变及血管性病变所占比例分别为 6 6 3% (6 9/ 10 4)、13 5 % (14/ 10 4)和 4 8% (5 / 10 4) ;(3)根据手术结果 ,MRI对三叉神经痛患者诊断的敏感性为 89 4% ,特异性为 96 6 %。结论 三叉神经脑池段的血管压迫或接触是三叉神经痛的主要病因 ,3D TOF成像能清晰显示三叉神经与邻近血管、肿瘤性病变或血管性病变之间的关系 ,为临床医师提供术前评估和指导治疗有极其重要的意义。
Objective To evaluate the diagnostic value of MRI in patients with trigeminal neuralgia. Methods MR manifestations and operative results of 104 patients with trigeminal neuralgia were reviewed retrospectively. Results (1)Of 104 patients with trigeminal neuralgia,75 patients had neurovascular compression or contact of the cisternal portion of the trigeminal nerve at MR imaging and 69 patients were verified by operation;14 patients had C P angle tumors, 13 cases were diagnosed by MRI and the remaining one was verified by the operation and pathology;5 patients had vascular lesions at MR imaging which were verified by microvascular decompression.(2) The percentages of the neurovascular compression or contact,tumors and vascular lesions which were the etiologles of trigeminal neuralgia were 66 3%(69/104),13 5%(14/104) and 4 8%(5/104) respectively.(3)The sensitivity and specificity of MR diagnosis was 89 4% and 96 6% respectively.Conclusion Neurovascular compression of cisternal portion of the fifth cranial nerve is the main cause of trigeminal neuralgia.MR plays an important role in demonstrating the relationship of the fifth cranial nerve to surrounding vascular structures or tumors.
出处
《中华放射学杂志》
CAS
CSCD
北大核心
2000年第12期833-836,共4页
Chinese Journal of Radiology
关键词
三叉神经痛
磁共振成像
诊断
三维时间飞跃
Trigeminal neuralgia
Magnetic resonance imaging
Pathology,clinical<
