Nuclear magnetic resonance imaging, a new approach to the investigation of refractory temporal lobe epilepsy.

Abstract:

:Nuclear magnetic resonance is a noninvasive technique of imaging the brain using signals produced by magnetic fields and radiowaves. Sixteen patients with refractory temporal lobe epilepsy (TLE) had magnetic resonance imaging (MRI) during investigation for possible surgical management. These images plus those of 10 normal controls, were interpreted blind and the results from the TLE patients compared to the EEG and computerized tomographic (CT) scan findings. Fourteen patients compared with one normal control had one or more of the following: small temporal lobe, small mesial temporal structures, small hemisphere, and focal mesial temporal prolonged spin-spin relaxation time. These findings correlated with the electrographically determined seizure focus in 11 patients. Enlarged or asymmetrical temporal horns were seen with equal frequency in patients and controls and did not correlate with the seizure focus. CT scans were less likely to show these changes than MRI. Correlation of the MRI changes with histopathology of resected temporal lobes was poor. MRI reveals structural and possibly functional alterations which may aid in the localization of the seizure focus in the temporal lobes of patients with refractory complex partial seizures.

journal_name

Epilepsia

journal_title

Epilepsia

authors

McLachlan RS,Nicholson RL,Black S,Carr T,Blume WT

doi

10.1111/j.1528-1157.1985.tb05691.x

subject

Has Abstract

pub_date

1985-11-01 00:00:00

pages

555-62

issue

6

eissn

0013-9580

issn

1528-1167

journal_volume

26

pub_type

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