The Role of Magnetic Resonance Imaging in Seizure Disorders

磁振造影術在癲癎疾患之價值

楊志華(Chee-Wah Yang) ； 劉金昌(Gin-Chung Liu) ； 鐘育志(Yuh-Jyh Jong) ； 趙垂勳(Twei-Shiun Jaw) ； 周敏雄(Min-Shon Chou)

《中華放射線醫學雜誌》 18卷2期 (1993/06) Pp. 121-131

摘要

One hundred and forty-four seizure patients were studied with magnetic resonance (MR) imaging. MR imagings showed abnormal findings in 59 patients (41%). In 45 patients with complex partial seizure (CPS), MR provided a positive finding in 21 cases (47%). The non-complex partial seizure (non-CPS) group showed a positive rate of 38% (38/99) (P＞0.05). Forty-one patients had concomitant computerized tomography (CT) and MR examinations. Positive findings were detected by CT in 12 cases (29%) and by MR in 18 cases (44%) (p＞0.05). All the lesions revealed on the CT scans were also detected on the MR images. MR was positive in 32 cases of the 84 children (38%) and in 27 cases of the 60 adults (45%)(p＞0.05). Eighty-nine patients received electroencephalography (EEG) examinations. Forty-nine cases showed positive EEG findings (55%) and 34 cases showed positive MR findings (38%). EEG was statistically more sensitive than MR imaging in detecting an epileptogenic focus (p＜0.01). It remained the most sensitive test for detecting an epileptogenic focus. However, MR was positive in six patients who had negative EEG findings. Although there was no statistically significant superiority of MR imaging to other imaging modalities in detecting epileptogic focus, MR could still more definitely confine the lesion foci and should be the modality of choice when the possibility of surgical intervention is considered.

關鍵字

癲癎 ； 磁振造影術 ； 電腦斷層掃描

並列摘要

One hundred and forty-four seizure patients were studied with magnetic resonance (MR) imaging. MR imagings showed abnormal findings in 59 patients (41%). In 45 patients with complex partial seizure (CPS), MR provided a positive finding in 21 cases (47%). The non-complex partial seizure (non-CPS) group showed a positive rate of 38% (38/99) (P＞0.05). Forty-one patients had concomitant computerized tomography (CT) and MR examinations. Positive findings were detected by CT in 12 cases (29%) and by MR in 18 cases (44%) (p＞0.05). All the lesions revealed on the CT scans were also detected on the MR images. MR was positive in 32 cases of the 84 children (38%) and in 27 cases of the 60 adults (45%)(p＞0.05). Eighty-nine patients received electroencephalography (EEG) examinations. Forty-nine cases showed positive EEG findings (55%) and 34 cases showed positive MR findings (38%). EEG was statistically more sensitive than MR imaging in detecting an epileptogenic focus (p＜0.01). It remained the most sensitive test for detecting an epileptogenic focus. However, MR was positive in six patients who had negative EEG findings. Although there was no statistically significant superiority of MR imaging to other imaging modalities in detecting epileptogic focus, MR could still more definitely confine the lesion foci and should be the modality of choice when the possibility of surgical intervention is considered.

並列關鍵字

Seizure disorder ； Magnetic resonance imaging MRI ； Computerized tomography CT