Magnetic Resonance Imaging for the Study of Patients With Neurological Disorders

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00001362
Recruitment Status : Completed
First Posted : November 4, 1999
Last Update Posted : March 4, 2008
Information provided by:
National Institutes of Health Clinical Center (CC)

Brief Summary:

This study is divided into two parts. The first part of the study will use MRI technology to view the brain structure of patients with neurological disorders and normal volunteers. This portion of the study will attempt to detect specific areas of damage in the brains of patients with amnesia and dementia. It will also try to correlate the amount of brain damage with performance on tests used to measure memory.

In the second part of the study, researchers plan to use MRI technology to study brain function of patients with neurological disorders and normal volunteers when they perform tasks. MRI signals during task performance will be used to record areas of the brain receiving more blood flow indicating increased activity.

Researchers believe this study will help improve existing methods of evaluating patients with neurological disorders. In addition, this study may contribute information about areas of the brain involved in thought processing and motor and sensory function.

Condition or disease
Amnesia Dementia Healthy Nervous System Disease

Detailed Description:
We wish to use MRI technology to study brain structure (Part 1) and function (Part 2) in several neurological disorders and in normal controls. In Part 1 of this protocol, we describe our interest in using detailed MRI brain structure analysis to identify predicted specific neural structure atrophy in patients with selective amnesia and dementia and to attempt to associate the magnitude of atrophy in these neural structures with performance on selected memory tests. In Part 2 of this protocol, we outline our interest in utilizing newly developed MRI techniques to identify selective changes in local brain blood volume, blood flow, and other physiological parameters during functional stimulation. Recent developments permit recording of MRI signals that are indicative of regional cerebral blood volume and blood flow changes. Local changes in these physiological measures appear to topographically overlap with expected areas of functional brain activation. The advantage of this method over Positron Emission Tomography is the exquisite spatial resolution of MRI. This MRI technique is new and has had only limited use so far. The studies in Part 2 of this protocol should help develop the method and begin to answer fundamental biological and functional questions about the representation and activation of cognitive, motor, and sensory functions.

Study Type : Observational
Enrollment : 830 participants
Official Title: Structural and Functional Imaging of Neurologically Impaired Patients and Normal Volunteers With 1.5 and 3.0 Tesla MRI
Study Start Date : December 1992
Study Completion Date : July 2003

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Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes


Subjects between the ages of 18 and 80.


Patient must be able to give informed consent.

Patients with ferromagnetic objects in their bodies which might be adversely affected by MRI (surgical clips or metal fragments in or near brain, eye or blood vessels, cardiac or neurological pacemaker, cochlear impairments) will be excluded.

Pregnant or lactating women will be excluded. A pregnancy test will be administered to women of childbearing age.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00001362

United States, Maryland
National Institute of Neurological Disorders and Stroke (NINDS)
Bethesda, Maryland, United States, 20892
Sponsors and Collaborators
National Institute of Neurological Disorders and Stroke (NINDS)

Publications: Identifier: NCT00001362     History of Changes
Other Study ID Numbers: 930060
First Posted: November 4, 1999    Key Record Dates
Last Update Posted: March 4, 2008
Last Verified: July 2003

Keywords provided by National Institutes of Health Clinical Center (CC):
Magnetic Resonance Imaging
Contrast Enhancement
Neuroanatomic Morphometry
Neurobehavioral Deficits
Neurological Disorders
Blood Flow
Blood Volume
Normal Volunteer

Additional relevant MeSH terms:
Nervous System Diseases
Brain Diseases
Central Nervous System Diseases
Neurocognitive Disorders
Mental Disorders
Memory Disorders
Neurobehavioral Manifestations
Neurologic Manifestations
Signs and Symptoms