Optimized Volumetry in Radiology: Interest in Pediatric Brain MRI in the Exploration of Focal Epilepsy

NCT ID: NCT05100771

Last Updated: 2024-06-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

240 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-03-14

Study Completion Date

2025-03-31

Brief Summary

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Multicentre cross-sectional study with prospective recruitment comparing the detection rate of lesions on brain MRI without and with quantitative volumetry and T1 relaxometry information during the management of children with suspected focal epilepsy.

Detailed Description

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Focal epilepsies are a very heterogeneous group comprising epilepsies of structural, genetic, metabolic, immune and infectious etiologies. In daily practice, epilepsy is considered as structural if lesions are visible on brain MRI in a location consistent with electro-clinical data. In the absence of visible lesion and clinico-biological arguments for a genetic, metabolic, immune or infectious cause, these epilepsies can be divided into two groups: self-limited focal epilepsies (formerly called idiopathic or functional), such as benign epilepsy with centrotemporal spikes (SLECTS) and secondly epilepsies of unknown causes. This classification underlines the idea that a lesion might be responsible for the epileptic disease but could be invisible due to the lack of sensitivity of our current diagnostic methods, especially in imaging.

The prevalence of patients with non lesional epilepsy defined by MRI is significantly higher in children (31%) than in adults (21%). Epileptic patients with normal conventional MRI have a lower chance of having surgery than those with lesions demonstrated by presurgical MRI and, if so, less chance of becoming seizure-free. It can be challenging to depict brain volume abnormalities in the pediatric population on MRI. The major challenge is therefore to raise sensitivity of brain imaging analysis. Voxel-based morphometric MRI post-processing in MRI-negative epilepsies can be a practical and valuable tool to aid subtle MRI abnormalities detection and confirm visually identified questionable abnormalities in patients with focal epilepsy.

In this study, we prospectively included children with suspected focal epilepsy having a brain MRI using a MP2RAGE sequence and a post-processing morphometric analysis program (MAP) allowing us to obtain automatically both brain volumetry and T1 relaxometry. The MAP has been validated with reference ranges in healthy children. Our hypothesis was that the quantitative information will improve the sensitivity of brain MRI in children with suspected focal epilepsy. The objectives were to compare the rate of detection of a focal cerebral lesion on the brain MRI carried out during the exploration of suspected focal epilepsy without then with the quantitative volumetry and T1 relaxometry obtained in the inclusion center and then by double anonymized review.

Conditions

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Focal Epilepsy

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Experimental group

The experimental group will be made up of patients with focal epilepsy

Pediatric brain MRI

Intervention Type OTHER

Routine brain MRI with automated quantitative information (brain volumetry and T1 relaxometry)

Interventions

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Pediatric brain MRI

Routine brain MRI with automated quantitative information (brain volumetry and T1 relaxometry)

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Patient aged 1-18 years
* Referred or followed by a pediatrician for epilepsy with focal onset
* Requiring brain MRI as part of the work-up

Exclusion Criteria

* Opposition of the child and/or parent to data processing
* MRI not interpretable
* Clinical and epileptic data not available or not specifying focus
Minimum Eligible Age

1 Year

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University Hospital, Tours

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Baptiste Morel

Role: PRINCIPAL_INVESTIGATOR

CHU Tours

Locations

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CHU Angers

Angers, , France

Site Status NOT_YET_RECRUITING

CHU Grenoble

Grenoble, , France

Site Status NOT_YET_RECRUITING

CHU Montpellier

Montpellier, , France

Site Status NOT_YET_RECRUITING

CHU Rennes

Rennes, , France

Site Status NOT_YET_RECRUITING

Hôpital Clocheville

Tours, , France

Site Status RECRUITING

Countries

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France

Central Contacts

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Baptiste Morel

Role: CONTACT

02 47 47 47 58

Facility Contacts

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Louis Marie LEIBER

Role: primary

02 41 35 36 37

Chantal DURAND

Role: primary

04 76 76 75 75

Nicolas LEBOUCQ

Role: primary

04 67 33 67 33

Bertrand BRUNEAU

Role: primary

02 99 28 43 21

Baptiste Morel

Role: primary

02 47 47 47 58

Other Identifiers

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DR210107

Identifier Type: -

Identifier Source: org_study_id

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