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Abstract

Efficacy of MR vs CT in Epilepsy

E. R. Heinz, T. R. Heinz, R. Radtke, R. Darwin, B. P. Drayer, E. Fram and William T. Djang
American Journal of Neuroradiology November 1988, 9 (6) 1123-1128;
E. R. Heinz
1Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710. Address reprint requests to E. R. Heinz
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T. R. Heinz
2Department of Surgery, Mary Hitchcock Clinic, Hanover, NH 03755
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R. Radtke
3Department of Medicine, Duke University Medical Center, Durham, NC 27710
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R. Darwin
1Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710. Address reprint requests to E. R. Heinz
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B. P. Drayer
4Department of Radiology, Barrow Neurological Institute and St. Joseph's Hospital, Phoenix. AZ 85013
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E. Fram
1Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710. Address reprint requests to E. R. Heinz
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William T. Djang
1Department of Radiology, Box 3808, Duke University Medical Center, Durham, NC 27710. Address reprint requests to E. R. Heinz
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Abstract

We studied 59 seizure patients with CT, MR, and EEG to determine the efficacy of each in the detection of an epileptogenic focus. EEG was most sensitive (67%), MR was next (53%), and CT was least sensitive (42%). MR detected an abnormality in five patients (8%) in whom CT was negative. EEG was positive in each of these patients. CT failed to demonstrate any focal lesion not detected by MR. MR and CT detected focal abnormalities in seven patients (12%) who had negative EEGs. Five of the seven patients had brain tumors. Eighteen of the 26 patients who underwent surgery had positive CT and MR; 14 of these patients had tumors. The remaining eight patients who had surgery all had temporal lobectomies for intractable seizures; none had tumors. In the complex partial seizure subgroup of 34 patients, MR was positive in 44%, CT was positive in 29%, and EEG was positive in 80%.

We consider MR to be the imaging procedure of choice for the detection of an epileptogenic focus in seizure patients. When indicated, CT may be performed as a second procedure to try to distinguish neoplasm from thrombosed vascular malformations and other lesions.

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American Journal of Neuroradiology
Vol. 9, Issue 6
1 Nov 1988
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Efficacy of MR vs CT in Epilepsy
E. R. Heinz, T. R. Heinz, R. Radtke, R. Darwin, B. P. Drayer, E. Fram, William T. Djang
American Journal of Neuroradiology Nov 1988, 9 (6) 1123-1128;

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Efficacy of MR vs CT in Epilepsy
E. R. Heinz, T. R. Heinz, R. Radtke, R. Darwin, B. P. Drayer, E. Fram, William T. Djang
American Journal of Neuroradiology Nov 1988, 9 (6) 1123-1128;
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