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Seizures: Classification

Seizures: Classification

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.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:

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Related Experiment Video

Updated: Apr 4, 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

International Veterinary Epilepsy Task Force recommendations for a veterinary epilepsy-specific MRI protocol.

Clare Rusbridge^1,2, Sam Long³, Jelena Jovanovik⁴

¹Fitzpatrick Referrals, Halfway Lane, Eashing, Godalming, GU7 2QQ, Surrey, UK. ClareR@fitzpatrickreferrals.co.uk.

BMC Veterinary Research

|August 31, 2015

Summary

A new standardized MRI protocol for epilepsy in veterinary patients is proposed to improve diagnosis. This epilepsy-specific MRI protocol aims to detect subtle lesions and identify underlying causes of seizures.

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Area of Science:

Veterinary neurology
Diagnostic imaging

Background:

Epilepsy is a common neurological disease in veterinary medicine.
Magnetic resonance imaging (MRI) is crucial for diagnosing idiopathic epilepsy.
Current MRI techniques may miss subtle lesions or specific differentials for seizures.

Purpose of the Study:

To address the need for a standardized MRI protocol for epilepsy in veterinary patients.
To improve the detection of subtle lesions and post-seizure changes.
To facilitate the identification of underlying causes of seizures.

Main Methods:

A proposed 6-7 sequence epilepsy-specific MRI protocol for veterinary patients.
Review of advanced MR and functional imaging techniques.
Focus on techniques adaptable for low and high field scanners.

Main Results:

The proposed protocol aims for detailed examination of seizure-generating areas.
Standardization will enhance clinical communication and uniformity in case definition.
The protocol is designed to be cost-efficient and simple to perform.

Conclusions:

A standardized veterinary epilepsy-specific MRI protocol is needed.
This protocol will improve diagnostic accuracy for canine and feline epilepsy.
Further research into advanced imaging may aid in understanding seizure etiologies.