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老年期发生的癫痫发作50％以上与脑出血或脑梗塞相关,急性缺血性卒中癫痫发生率为5％～10％。本文用正电子计算机断层扫描(PET)检查2组经CT、MRI或DSA确诊的颈动脉或大脑中动脉区脑梗塞病人的局部脑血流(rCBF)、局部耗氧率(rCMRO_2)和局部氧摄取率(rOER)。 25例中12例于卒中后2～13月发生癫痫,PET检查前有1～10次癫痫发作,发病后3天作PET检查,13例脑梗塞后无癫痫发作。癫痫组CT病灶大小为18～103mm,平均68mm,无癫痫组为16～94mm,平均64mm。PET结果表明2组病灶对侧半球
More than 50% of epileptic seizures in old age are associated with cerebral hemorrhage or cerebral infarction. The incidence of epilepsy in acute ischemic stroke is 5% -10%. In this study, we examined the regional cerebral blood flow (rCBF), local oxygen consumption (rCMRO_2) and local oxygenation (rCMRO_2) in two groups of patients with cerebral infarction who were diagnosed by CT, MRI or DSA in the middle cerebral artery region by positron emission computed tomography (PET) Uptake (rOER). Twelve of the 25 patients developed epilepsy 2 to 13 months after stroke, 1 to 10 seizures before the PET examination, PET examination 3 days after the onset of disease, and 13 seizures without seizures. The size of CT lesions in epilepsy group was 18 ~ 103mm, with an average of 68mm, and the group without epilepsy was 16 ~ 94mm with an average of 64mm. PET results showed that the two groups of contralateral hemispheres