MRI在药物难治性癫痫术前评估中的价值

目的探讨MRI及脑电图(electroencephalogram；EEG)在药物难治性癫痫术前评估中的价值。方法回顾31例药物难治性癫痫患者术前常规MRI表现及EEG表现，分析病变部位及性质，并与术后追踪结果对比。结果HS(hippocampal sclerosis，海马硬化)、FCD(focal cortical dysplasia，局灶性皮质发育不良)、PSE(post-stroke epilepsy，脑卒中后癫痫)的MRI及EEG表现；发作间期致痫灶的定位准确率MRI为87%，EEG为56%，定性准确率MRI为77%，EEG为48%，二者结合定位准确率97%，定性准确率84%。结论MRI与EEG相结合，可以有效提高致痫灶定位及定性的准确率，尤其是在HS的诊断中起着重要作用。

Objective to discuss the preoperative diagnosed value of MRI and EEG in drug refractory epilepsy.Method Review the MRI and EEG character of31Drug refractory epilepsy cases,Compare with post-operation follow-up and the diseased region and lesion analyzed.Result MRI imaging features and EEG character of HS,FCD and PSE;MRI and EEG have made respectively in epilepsy patients in interictal stage,the location accuracy of seizure focus is MRI87%,EEG56%,the qualitative accuracy of seizure focus is MRI77%,EEG48%,Location accuracy is97%and the qualitative accuracy is84%after combination of the two.Conclusion The combination of MRI and EEG can effectively improve the location and qualitative accuracy,Especially plays an important role in the diagnosis of HS.