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Brain-Scan showdown: which test best finds seizure hotspots?

NCT ID NCT03893916

Recruiting now Knowledge-focused Sponsor: Hospices Civils de Lyon Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study compares two advanced brain-mapping techniques—magnetoencephalography (MEG) and high-resolution EEG (EEG HR)—to see which better locates the seizure-causing area in people with drug-resistant epilepsy who are candidates for surgery. Researchers will enroll 100 participants and check how well each method matches the actual surgical site in patients who become seizure-free after surgery. The goal is to determine if one technique is more precise, or if using both together adds value.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to
If successful, this could help doctors more accurately pinpoint where seizures start in the brain, potentially improving epilepsy surgery success rates.
What could go wrong
This is an observational comparison of two techniques, not a treatment trial. It may not lead to immediate changes in patient care, and results might not apply to all epilepsy types.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Drug Resistant Epilepsy epilepsy focal epilepsy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

CANDIDATES FOR SURGICAL TREATMENT DRUG RESISTANT EPILEPSY EPILEPSY

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Hospices Civils de Lyon

    RECRUITING

    Bron, 69500, France

    Contact

    Contact

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