Sakai K, Hidari M, Fukai M, Okamura T, Asaba H, Sakai T
Department of Neuropsychiatry, Osaka Medical College, Takatsuki, Japan.
Epilepsia. 1997 Mar;38(3):374-6. doi: 10.1111/j.1528-1157.1997.tb01131.x.
We report obtaining an ictal single photon emission computed tomographic (SPECT) scan in a right-handed 51-year-old man who had an astrocytoma in the left cerebral hemisphere and simple partial seizures characterized by aphasia. An epileptic seizure producing loss of speech and right-sided facial twitching occurred by chance during a SPECT scan. During the attack, he was unable to speak, but auditory comprehension and writing were intact. Ictal SPECT showed an area of increased perfusion in the left frontal cortex, with the area of highest perfusion involving the left frontal operculum to the inferior part of the left precentral gyrus. Interictal SPECT showed hypoperfusion in the same area. These SPECT findings suggest that the frontal operculum of the dominant hemisphere is one of the regions that can give rise to epileptic aphasia.
我们报告了对一名51岁右利手男性进行发作期单光子发射计算机断层扫描（SPECT）的情况。该男性左脑半球患有星形细胞瘤，伴有以失语为特征的简单部分性发作。在一次SPECT扫描期间偶然发生了一次导致言语丧失和右侧面部抽搐的癫痫发作。发作期间，他无法说话，但听觉理解和书写能力完好。发作期SPECT显示左侧额叶皮质灌注增加，灌注最高的区域涉及左侧额下回至左侧中央前回下部。发作间期SPECT显示同一区域灌注减低。这些SPECT结果表明，优势半球的额下回是可能引发癫痫性失语的区域之一。
