Congia S, Cannas A, Borghero G, Tacconi P, Uselli S, Vacca M, Ferrigno P, Ferrai R
Chair of Neurophysiology, University of Cagliari, Italy.
Funct Neurol. 1994 Nov-Dec;9(6):297-301.
122 patients with acute stroke were examined in order to demonstrate the sensitivity and the specificity of EEG versus CT findings, in distinguishing cortical from subcortical lesions. To do this the electroencephalographic diagnosis performed by two different electroencephalographers was compared with the neuroimaging diagnosis. The results showed a sensitivity of 77% and a specificity of 75%. Furthermore, the EEG findings can also provide physiopathological data, in that the cortical lesions are likely to be due to embolism, while the subcortical lesions are more likely to be due to the pathological process of the intracerebral blood-vessels and the lesions of the watershed territories to hemodynamic phenomena.
为了证明脑电图（EEG）相对于计算机断层扫描（CT）结果在区分皮质病变与皮质下病变方面的敏感性和特异性，对122例急性中风患者进行了检查。为此，将两位不同脑电图检查人员进行的脑电图诊断与神经影像学诊断进行了比较。结果显示敏感性为77%，特异性为75%。此外，脑电图结果还可以提供生理病理数据，因为皮质病变可能是由于栓塞引起的，而皮质下病变更可能是由于脑内血管的病理过程以及分水岭区域的病变是由血流动力学现象引起的。
