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Related Concept Videos

Epilepsy and Seizures: Overview01:24

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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Epilepsy ll: Types01:22

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Recurrent seizures, stemming from abnormal electrical activity in the brain, are the defining characteristic of epilepsy, a chronic neurological condition. Because seizure features vary greatly, epilepsy is classified using two systems: by seizure type and by epilepsy syndromes. These classifications enable clinicians to describe seizure patterns and select suitable treatment strategies.I. Classification by Seizure Type1. Focal EpilepsyFocal epilepsy begins in one hemisphere of the brain.
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Seizures: Classification01:13

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
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Focal Seizures
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Seizures l: Introduction01:20

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Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
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Brain Imaging01:14

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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Related Experiment Video

Updated: Apr 21, 2026

A Multimodal Imaging- and Stimulation-based Method of Evaluating Connectivity-related Brain Excitability in Patients with Epilepsy
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Epilepsy imaging in adults: getting it right.

Elliott Friedman1

  • 11 Department of Diagnostic and Interventional Imaging, University of Texas Health Science Center at Houston, 6431 Fannin St, MSB 2.130B, Houston, TX 77030.

AJR. American Journal of Roentgenology
|October 24, 2014
PubMed
Summary

This article details an optimized MRI protocol for epilepsy evaluation, highlighting common causes of epilepsy and advanced imaging techniques. Accurate detection of subtle lesions is crucial for successful epilepsy surgery outcomes.

Keywords:
MRIepilepsy

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Area of Science:

  • Neurology
  • Radiology
  • Medical Imaging

Background:

  • Epilepsy is a prevalent neurological disorder.
  • Successful epilepsy surgery relies on precise identification of the epileptogenic zone.
  • Preoperative imaging is critical for surgical planning.

Purpose of the Study:

  • Describe an optimized MRI protocol for epilepsy evaluation.
  • Illustrate common epilepsy causes visible on MRI.
  • Explain advanced imaging concepts for epilepsy assessment.

Main Methods:

  • Utilized a dedicated MRI protocol tailored for epilepsy.
  • Analyzed MR images from patients with medically intractable partial epilepsy.
  • Focused on identifying subtle structural abnormalities.

Main Results:

  • Common epilepsy-related lesions visualized on MRI were identified.
  • The importance of a meticulous radiologist examination was emphasized.
  • Subtle abnormalities, often missed, were highlighted.

Conclusions:

  • A dedicated epilepsy MRI protocol is essential for detecting structural lesions.
  • Thorough image review by radiologists is critical for successful epilepsy surgery.
  • Identifying the epileptogenic zone through imaging improves seizure-free outcomes.