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Updated: Aug 18, 2026
Stereo-Electro-Encephalo-Graphy (SEEG) With Robotic Assistance in the Presurgical Evaluation of Medical Refractory Epilepsy: A Technical Note
Published on: June 13, 2016
MR contribution in surgery of epilepsy
L C Meiners1, J Valk, G H Jansen
1Department of Radiology, University Hospital Utrecht, Heidelberglaan 100, NL-3581 PJ, The Netherlands.
Abstract:
The contribution of MR imaging in patients with drug-resistant epilepsy considered for surgical therapy is discussed. In this review we focus on: (a) focal abnormalities (mesial temporal sclerosis, focal migration disorders, hamartomatous lesions and low-grade tumours, phakomatosis and vascular malformations) associated with therapy-resistant partial epilepsy, requiring resective surgery; (b) abnormalities leading to generalized seizures that require more drastic surgical procedures, such as callosotomy and functional hemispherectomy; and (c) localisation of implanted depth-electrodes.
Insights
Magnetic Resonance (MR) imaging aids in surgical planning for drug-resistant epilepsy. It identifies focal abnormalities for resective surgery and helps locate electrodes for generalized seizure treatments.
Area of Science:
- Neurology
- Radiology
- Neurosurgery
Background:
- Drug-resistant epilepsy often necessitates surgical intervention.
- Accurate pre-surgical evaluation is crucial for successful outcomes.
- Magnetic Resonance (MR) imaging is a key diagnostic tool.
Purpose of the Study:
- To review the role of MR imaging in surgical candidates with drug-resistant epilepsy.
- To highlight MR imaging findings associated with different surgical approaches.
- To discuss the utility of MR imaging in localizing implanted electrodes.
Main Methods:
- Review of literature on MR imaging in epilepsy surgery.
- Categorization of MR imaging findings based on epilepsy type and surgical procedure.
- Discussion of specific imaging abnormalities and their surgical implications.
Main Results:
- MR imaging identifies focal lesions (e.g., mesial temporal sclerosis, tumors, malformations) in patients with partial epilepsy eligible for resective surgery.
- MR imaging aids in planning more extensive surgeries like callosotomy and hemispherectomy for generalized epilepsy.
- MR imaging is essential for accurate localization of implanted depth-electrodes.
Conclusions:
- MR imaging is indispensable for pre-surgical assessment in drug-resistant epilepsy.
- Tailored surgical strategies for epilepsy are guided by detailed MR imaging analysis.
- Advanced MR imaging techniques enhance the precision of epilepsy surgery.
