Clinical Trials Logo

Clinical Trial Summary

This study will evaluate new magnetic resonance imaging (MRI ) methods using a MRI machine more powerful than those in most hospitals. MRI is a diagnostic tool that uses a large magnet and radio waves to produce images of the human body. It can also provide information about brain chemistry and physiology. This study will use the new MRI hardware and methods to measure blood flow and metabolism in regions of the brain during simple tasks, such as listening to tones or watching flashing checkerboards.

Healthy normal volunteers will undergo MRI scanning. For this procedure, the person lies on a stretcher that is moved into a MRI machine, which produces a strong magnetic field. A special lightweight coil is placed on the person's head to obtain better pictures. The scan time ranges from 20 minutes to 2 hours, with the average scan lasting between 45 and 90 minutes.

During the MRI, the person may be asked to perform simple tasks, such as listening to tones or watching a screen, tapping fingers or moving a hand. More complex tasks may require thinking about tones or pictures and responding to them by pressing buttons.

The images produced in this study will be compared with those produced using standard MRI. The results will be used to develop improved imaging methods for better patient care and research.


Clinical Trial Description

Technical advances in Magnetic Resonance Imaging (MRI) and Magnetic Resonance Spectroscopy (MRS) has provided researchers with the opportunity to study functional and metabolic changes of the central nervous system (CNS) in both healthy controls and individuals with neurological diseases in response to sensory, motor or cognitive stimulation. While MRI is in common usage in radiology departments and clinics MRI and MRS techniques and hardware are continually being upgraded and designed for Functional Magnetic Resonance Imaging (fMRI) and Magnetic Resonance Spectroscopic Imaging of the CNS at 3.0 Tesla. We will evaluate new sequences on volunteers and for potential use in patients with CNS pathology. These studies are required in order to develop and implement new imaging techniques for research and clinical applications. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT00001844
Study type Observational
Source National Institutes of Health Clinical Center (CC)
Contact
Status Terminated
Phase
Start date September 8, 1999
Completion date September 7, 2012

See also
  Status Clinical Trial Phase
Completed NCT03160261 - Effect of Exenatide on Cortisol Secretion Phase 4
Recruiting NCT02875301 - Investigating Gains in Neurocognition in an Intervention Trial of Exercise Phase 3
Completed NCT03203824 - The Effects of Dark Chocolate (70% Cacao) on EEG Brain Waves in Vigorously Active Individuals N/A
Completed NCT03056846 - Probiotics on Stress-associated Gastrointestinal Function in University Students N/A
Recruiting NCT03114839 - Effect of Lactobacillus Casei Shirota on the Small Intestinal Microbiota (ROBIN) N/A
Active, not recruiting NCT03224702 - First-in-Human Trial of Anti-ADAMTS-5 Nanobody in Healthy Volunteers Phase 1
Completed NCT03259464 - This Study Tests BI 685509 in Healthy Chinese and Japanese Men; the Study Tests How Different Doses of BI 685509 Are Taken up in the Body and How Well They Are Tolerated Phase 1
Completed NCT03309566 - Bioequivalence Study of Two Formulatiosns With the Asscociaton of Efavirenz, Emtricitabine and Tenofovir Phase 4
Completed NCT00527579 - PET Imaging of Peripheral Benzodiazepine Receptors in Patients With Neurocysticercosis Using [F-18]FB Phase 1
Completed NCT00526916 - PET Imaging of Peripheral Benzodiazepine Receptors in Patients With Neurocysticercosis Using [C-11]PBR28 Phase 1
Completed NCT03373162 - Functional Effects of Botox on the Brain Using MRS and fMRI Phase 4
Recruiting NCT02509494 - Staged Phase 3 Study to Assess the Safety and Immunogenicity of Ebola Candidate Vaccines Ad26.ZEBOV and MVA-BN-Filo During Implementation of Stages 1 and 2 Phase 3
Terminated NCT02555085 - Single Ascending Doses of BIIB063 in Healthy Volunteers Phase 1
Completed NCT03125018 - Accuracy of SpO2 for Noninvasive Pulse Oximeter Sensor (LNCS ADTX) N/A
Completed NCT03124901 - Accuracy of Noninvasive Pulse Oximeter Measurement of Hemoglobin for Rainbow DCI Sensor N/A
Completed NCT00004556 - The Effects of Dextroamphetamine on Brain Function
Not yet recruiting NCT03617861 - Effect of Secretin in Functional Dyspepsia and Healthy Subjects Phase 1/Phase 2
Completed NCT00091533 - Neural Correlates of Observation of Tactile Stimulation in Healthy Subjects N/A
Completed NCT00068926 - VRC 300: Screening of Healthy Volunteers for Clinical Trials of Investigational Vaccines to Prevent Infectious Diseases N/A
Completed NCT03280173 - A Study Comparing the Amounts of 2 Different Forms of Tafamidis (PF06291826), Both With and Without Food, In the Blood Phase 1