Studi Komparasi Pemeriksaan MRI 0,5 Tesla Terhadap EEG Skalp dan Evaluasi Hasil Operasi Berdasarkan Kriteria Engel pada Epilepsi Mesial Temporal Sclerosis

Abstract

Comparative study of MRI 0,5 Tesla result with scalp ECG and evaluation of surgery result based on Engel classification among patient with mesial temporal sclerosis epilepsy. Background: Accurate preoperative localization of the epileptic is important in the intraoperative localization of lesion which ultimately will control the postoperative seizures. Purpose: To investigate the association among routine scalp electroencephalographic (EEG), Magnetic Resonance Imaging (MRI) 0.5 Tesla and Surgical outcome using Engel’s criteria in Mesial Temporal Sclerosis (MTS). Methods: This study used is an analitical descriptive study with cross sectional design. Correlation between EEG and MRI was analized using the Kappa and MRI findings with operative outcome was analized using the Spearmann. Forty seven patients with intractable Epilepsy who underwent temporal lobe lobectomy between 2000 and 2007 were the subjects of the study. Results: Routine scalp EEG and MRI findings revealed that the focus were the mostly temporal lobe epileptiform in the right side. Comparing the EEG foci with MRI lesion, the study revealed same location of foci in the right side (42.6% vs 61.7%), in the left side (27.7% vs 27.7%), bilateral (14.9% vs 2.1%) and normal (14.9% vs 8.5%). The correlation of lateralization of foci between EEG findings and MRI lesion is significan. There was association between the MRI 0.5 Tesla findings and operative outcome (r=0.352, p=0.015). All patients after surgery showed I-III Engel’s classification. Conclusions: Result of MRI 0.5 Tesla gives slight agreement with scalp ECG result but is associated with the operation outcome based on Engel classification.