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Epilepsy and Seizures: Overview

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Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...

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Related Experiment Video

Updated: May 30, 2026

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

Published on: November 13, 2016

Neuroimaging in epilepsy.

Trishit Roy¹, Alak Pandit

¹Department of Neurology, Bangur Institute of Neuroscience and Psychiatry, 52/1A, S.N. Pandit Street, Kolkata, India.

Annals of Indian Academy of Neurology

|August 3, 2011

Summary

This summary is machine-generated.

Neuroimaging, particularly 3 tesla MRI, is crucial for diagnosing epilepsy by detecting subtle brain lesions. CT scans serve as a vital alternative when MRI is unavailable, aiding in diagnosis and management.

Keywords:

Epilepsy magnetic resonance imaging neuroimaging positron emission tomography single photon emission computerized tomography

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Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

Published on: June 6, 2015

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Last Updated: May 30, 2026

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy

Published on: November 13, 2016

Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

Brain Source Imaging in Preclinical Rat Models of Focal Epilepsy using High-Resolution EEG Recordings

Published on: June 6, 2015

Area of Science:

Neurology
Radiology
Medical Imaging

Background:

Epilepsy is a prevalent neurological disorder with varied causes.
Neuroimaging is essential for diagnosing epilepsy, guiding treatment, and predicting prognosis.
Identifying specific brain pathologies aids in managing epilepsy effectively.

Purpose of the Study:

To highlight the role of neuroimaging in epilepsy diagnosis and management.
To compare the efficacy of different neuroimaging modalities in detecting epileptic lesions.
To emphasize the importance of advanced MRI techniques and the utility of CT scans.

Main Methods:

Review of neuroimaging techniques used in epilepsy workup.
Emphasis on 3 tesla MRI for detecting small lesions (e.g., mesial temporal sclerosis, cortical dysplasia).
Discussion of CT scan's role as an alternative and in acute settings.
Mention of functional imaging in pre-surgical evaluation for refractory epilepsy.

Main Results:

3 tesla MRI is superior in detecting subtle lesions missed by conventional MRI or CT.
Identification of specific lesions facilitates more effective management of refractory epilepsies.
CT scans are valuable initial investigations, especially in resource-limited settings and acute situations.
Functional imaging helps localize the epileptogenic focus for surgical planning.

Conclusions:

Advanced neuroimaging, especially 3 tesla MRI, is critical for comprehensive epilepsy diagnosis.
Accessible alternatives like CT scans remain important, particularly in certain clinical scenarios.
Tailored imaging strategies improve patient outcomes and management of refractory epilepsy.