In Vivo and ex Vivo Validation of MR Tractography of Brain White Matter Tracts - FIBRATLAS II-III (FIBRATLAS)

December 23, 2025 updated by: University Hospital, Tours

White matter tracts connect cortical areas to other parts of the cortex, to basal ganglia and to the brain stem and spinal cord. These tracts form the internal part of the brain and transmit the nervous impulses. Changes in brain white matter may serve as biomarkers for numerous neurological diseases.

Diffusion Weighted Imaging (DWI) is a non-invasive MRI (Magnetic Resonance Imaging) technique providing information on white matter tracts (tractography) by studying water diffusion. Since it is based on complex mathematical models that only indirectly evaluates the underlying anatomy, tractography need to be validated before being used for research and clinical purposes. Several validation techniques were previously proposed, none of them being fully convincing in human.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

134

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Amiens, France, 80054
        • University Hospital of Amiens
      • Angers, France, 49033
        • University Hospital of Angers
      • Brest, France, 29609
        • University Hospital of Brest
      • Lyon, France, 69000
        • Hospital of Charpennes - Lyon
      • Nancy, France, 54511
        • University Hospital of Nancy
      • Rennes, France, 35033
        • University Hospital of Rennes
      • Tours, France, 37044
        • University hospital of Tours

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

82 years and older (Older Adult)

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Prior enrollment in a body donation program
  • Age ≥ 82 years
  • Absence of major cognitive impairment as demonstrated by independent living skills in 4 fields evaluated by the IADL (4 items) (Lawton and Brody, 1969)
  • Distance to one of the participating laboratories ≤ 120km
  • Able to remain supine in the MR scanner for acquisition duration (60 min),
  • Affiliation to Social Security
  • Informed and written consent

Non Inclusion Criteria:

  • Past or present Neurological or Neurosurgical diseases (excluding trauma or degenerative spinal lesions)
  • Uncontrolled: High blood pressure, diabetes (types I or II), or dyslipemia
  • Contraindications to MRI
  • Contraindication to body donation

Exclusion criteria

  • Diagnosis on MRI of brain lesions, excepted common age-related changes

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Healthy subjects
MRI and neuropsychological evaluation
Device: MRI
In vivo MRI with B0 cartography, FLAIR, 3D T1 anatomic images, DWI, and Tractography from DWI images

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Reconstructions of the fiber tracts
Time Frame: 5.5 years
similarity indices, such as modified Haussdorf distance, measured on MRI images
5.5 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of subjects included in the database
Time Frame: 5.5 years
Number of subjects included in the database
5.5 years
Scores at neuropsychological evaluation
Time Frame: 5.5 years
Scores at neuropsychological evaluation
5.5 years
In vivo MRI measures obtained from DWI
Time Frame: 5.5 years
In vivo MRI measures obtained from DWI
5.5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University Hospital, Tours

Investigators

  • Principal Investigator: Christophe DESTRIEUX, PhD, University hospital of Tours

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

October 1, 2015

Primary Completion (Actual)

February 1, 2021

Study Completion (Actual)

February 1, 2021

Study Registration Dates

First Submitted

May 12, 2015

First Submitted That Met QC Criteria

May 26, 2015

First Posted (Estimated)

May 27, 2015

Study Record Updates

Last Update Posted (Estimated)

December 30, 2025

Last Update Submitted That Met QC Criteria

December 23, 2025

Last Verified

December 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ANR 14 - CD / FIBRATLAS

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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