摘要
目的讨磁共振断层血管成像(MRTA)在原发性面肌痉挛(EHFS)临床诊断中的价值。方法收集36例面肌痉挛患者术前行MRTA检查,了解责任血管的来源及走向。结果 36例共72侧面神经,MRTA检查发现非症状侧血管压迫或接触4例,阳性率11%,而症状侧血管压迫或接触27例,阳性率75%,两者差异有统计学意义(P<0.001)。结论血管明确接触或压迫面神经征象与临床发生EHFS症状之间有密切关系,对微血管减压治疗面肌痉挛有重要的术前指导价值。
Objective To evaluate MR tomographic angiography（MRTA） in the clinical diagnosis of essential hemifacial spasm（EHFS）. Methods Pre operative MRTA imaging of 36 EHFS patients was performed, the source of offending vessels was determined before the operation. Results In the study, 4 cases of facial nerves had vascular compression or contact on 36 asymptomatie sides, positivity was 11 % ; 27 cases of facial nerves had vascular compression or contact on 36 spastic sides, the positivity was 75%. The difference between the symptomatic sides and asymptomatic sides in EHFS patients was statistically significant （P〈0. 001）. Conclusion The signs of neurovascular definite contact and compression detected by MRTA are defi nitely related with the occurrence of EHFS. MRTA may achieve optimal correspondence with clinical symptoms and improve sensitivity, specificity and accuracy in detecting NVC.
出处
《中国实用神经疾病杂志》
2013年第6期12-14,共3页
Chinese Journal of Practical Nervous Diseases
关键词
面肌痉挛
磁共振成像
磁共振断层血管成像
Hemifacial spasm
Magnetic resonance imaging
Magnetic resonance tomographic angiography
