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Combined Role of Position Emission Tomography (PET) and Magnetoencephalography (MEG) in Nonlesional Epilepsy

T

The Hospital for Sick Children

Status and phase

Completed
Phase 3

Conditions

Epilepsy

Treatments

Device: Magnetic resonance imaging
Device: Positron emission tomography (PET)
Device: magnetoencephalography

Study type

Interventional

Funder types

Other

Identifiers

NCT00741559
1000011429

Details and patient eligibility

About

The first aim of this study are to evaluate the lobar concordance of FDG-PET and MEG with intracranial electrographic study in children with intractable partial epilepsy. The second aim is to determine if the combined role of FDG-PET and MEG improve detection of epileptogenic zone as defined by invasive intracranial recordings.

Full description

Children with poorly controlled epilepsy are extensively investigated with various tools including MR brain, electroencephalography (EEG), magnetoencephalography (MEG) or position emission tomography (PET) scans. When MR brain does not show an abnormality, the patient is said to have nonlesional epilepsy. In these cases, it is even more crucial to be able to identify the epileptogenic zone, depending on availability of investigative tool.

Recognizing that individual modalities have limitations, the aim of this study is to determine if combining non-invasive investigations with MEG and PET, which respectively evaluate the electrical and metabolic activity of the brain, could improve the children with intractable nonlesional epilepsy with MEG and PET and compared this with invasive intracranial monitoring. The endpoint of the study being agreement on localizations of epileptogenic zone using PET and MEG individually and in combination and comparing this with invasive intracranial monitoring.

Enrollment

59 patients

Sex

All

Ages

Under 18 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • Children between the ages 0-18 years with (1) nonlesional intractable focal epilepsy and (2) those with discordant clinical and EEG findings, who are potential surgical candidates

Exclusion criteria

  • Patients who are pregnant

Trial design

Primary purpose

Diagnostic

Allocation

N/A

Interventional model

Single Group Assignment

Masking

None (Open label)

59 participants in 1 patient group

1
Experimental group
Treatment:
Device: Positron emission tomography (PET)
Device: magnetoencephalography
Device: Magnetic resonance imaging

Trial contacts and locations

1

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Data sourced from clinicaltrials.gov

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