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目的 研究脑血管畸形致癫痫患者的MRI表现,并探讨其与癫痫发作的关系。方法对19例脑血管畸形致癫痫患者的头颅MRI进行回顾性研究。结果8例可见明确的脑血管畸形直接征象和间接征象及流空现象。11例均见血管瘤周围的胶质增生及典型或不典型的铁环征等间接征象。病变主要累及皮质(14例)、颞叶、海马(9例)。供应动脉主要为大脑中动脉(10例),大脑前、后动脉(7例)。结论 脑血管畸形的直接征象及间接征象与癫痫的病因有关;血管畸形所在部位及供养动脉与癫痫的发作有关。
Objective To study the MRI findings of patients with epilepsy induced by cerebrovascular malformation and to explore its relationship with seizure. Methods A retrospective study was performed on cranial MRI in 19 patients with epilepsy caused by cerebrovascular malformations. Results 8 cases showed clear signs of cerebrovascular malformations and indirect signs of air flow phenomenon. 11 cases were seen around the glioma glial proliferation and typical or atypical iron ring signs and other indirect signs. Lesions mainly involved the cortex (14 cases), temporal lobe, hippocampus (9 cases). The main artery for the middle cerebral artery (10 cases), anterior cerebral artery (7 cases). Conclusions The direct and indirect signs of cerebrovascular malformation are related to the etiology of epilepsy. The location of vascular malformations and the feeding artery are associated with the onset of epilepsy.