【摘要】 目的 探讨经颅超声波多普勒方法在小儿癫痫中的诊断价值。方法 采用经颅多普勒方法，对46例癫痫患儿发作间期及6例发作中大脑中动脉血流速度进行测定。结果 症状性癫痫脑血流低下的比例较高。肌痉挛发作时脑血流速度在脑电出现多棘慢波后迅速上升，而后一过性下降。结论 癫痫患儿发作间期脑血流的低下与脑的器质性损害有关。癫痫发作类型不同，脑血流速度改变亦不同，反映了发作机制的差异。

    【关键词】 癫痫;脑血流;脑电;小儿 The value of ultrasound Doppler's in diagnosing children with epilepsy

    CHEN Yu，WANG Hai-yan.

    Pediatric Department,Jiangwan Hospital of Shanghai,Shanghai 200434，China

    【Abstract】 Objective Exploring the value of trans-cranial ultrasound Doppler's method in diagnosing children with epilepsy.Methods The blood flow velocity of the middle cerebral artery was measured in 46 children with epilepsy at attack intervals and 7 children at their attack stage by trans-cranial ultrasound Doppler's method and the relations of the blood flow velocity to its related with electroencephalogram were analyzed.Results The ratio of shower cerebral blood flow in patients with symptomatic epilepsy was much higher.But it decreased strongly during epieptisism of atypical absence seizures.The cerebral blood flow velocity in paramyoclonus rose immediately after EEG appeared diffuse spike and wave,then it dropped transiently.Conclusion The shower cerebral blood flow velocity in patients during epileptic seizures may be related to organic brain damage.By accompanying the different of type in epilepsy at attack stage,the blood flow velocity of the middle artery is different.It shows the difference of attack mechanism. ......