Magnetic Resonance Imaging at Different Levels of Magnetic Intensity
Magnetic Resonance at 1.5 and 3 Tesla
2 other identifiers
observational
497
1 country
1
Brief Summary
Magnetic resonance imaging (MRI) is a diagnostic tool that creates high quality images of the human body without the use of X-ray (radiation). MRI uses different levels of magnetic fields to create images of the body and organs. Occasionally, researchers will give patients undergoing a MRI an injection of a substance called gadolinium. Gadolinium works by brightening areas of the magnetic resonance image, thereby improving the contrast. In this study researchers will use magnetic resonance imaging and contrast substances, like gadolinium, on normal volunteers in order to evaluate different aspects of its performance. Information gathered from this study may be used to develop more specific research studies involving MRI.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Nov 1996
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
November 5, 1996
CompletedFirst Submitted
Initial submission to the registry
November 3, 1999
CompletedFirst Posted
Study publicly available on registry
November 4, 1999
CompletedStudy Completion
Last participant's last visit for all outcomes
July 20, 2011
CompletedJuly 2, 2017
July 20, 2011
November 3, 1999
June 30, 2017
Conditions
Keywords
Eligibility Criteria
You may qualify if:
- Any normal volunteer greater than or equal to 18 who is capable of giving informed consent.
You may not qualify if:
- A subject will be excluded if he/she has a contraindication to MR scanning such as:
- Brain aneurysm clip
- Implanted neural stimulator
- Implanted cardiac pacemaker or defibrillator
- Cochlear or ear implant
- Ocular foreign body (e.g. metal shavings)
- Insulin pump
- Pregnant women (when uncertain, subject will undergo urine or blood testing).
- Claustrophobia
- Any condition in the Principal Investigator's judgement which present unnecessary risk
- Lactating Women
- Renal or hepatic disease
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892, United States
Related Publications (3)
Mattay VS, Weinberger DR, Barrios FA, Sobering GS, Kotrla KJ, van Gelderen P, Duyn JH, Sexton RH, Moonen CT, Frank JA. Brain mapping with functional MR imaging: comparison of gradient-echo--based exogenous and endogenous contrast techniques. Radiology. 1995 Mar;194(3):687-91. doi: 10.1148/radiology.194.3.7862963.
PMID: 7862963BACKGROUNDNiendorf HP, Dinger JC, Haustein J, Cornelius I, Alhassan A, Clauss W. Tolerance data of Gd-DTPA: a review. Eur J Radiol. 1991 Jul-Aug;13(1):15-20. doi: 10.1016/0720-048x(91)90049-2.
PMID: 1889423BACKGROUNDFrank JA, Mattay VS, Duyn J, Sobering G, Barrios FA, Zigun J, Sexton R, Kwok P, Woo J, Moonen C, et al. Measurement of relative cerebral blood volume changes with visual stimulation by 'double-dose' gadopentetate-dimeglumine-enhanced dynamic magnetic resonance imaging. Invest Radiol. 1994 Jun;29 Suppl 2:S157-60. doi: 10.1097/00004424-199406001-00052. No abstract available.
PMID: 7928216BACKGROUND
MeSH Terms
Conditions
Study Design
- Study Type
- observational
- Sponsor Type
- NIH
Study Record Dates
First Submitted
November 3, 1999
First Posted
November 4, 1999
Study Start
November 5, 1996
Study Completion
July 20, 2011
Last Updated
July 2, 2017
Record last verified: 2011-07-20