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

Regional University Hospital Center (CHRU)

Status

Completed

Conditions

Neurological Diseases

Treatments

Device: MRI

Study type

Interventional

Funder types

Other

Identifiers

NCT02455284

ANR 14 - CD / FIBRATLAS

Details and patient eligibility

About

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.

Enrollment

134 patients

Sex

All

Ages

82+ years old

Volunteers

Accepts Healthy Volunteers

Inclusion and exclusion criteria

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