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Comparing Magnetic Resonance Imaging/Spectroscopy Techniques



Comparing Magnetic Resonance Imaging/Spectroscopy Techniques

For Condition: Healthy
Status: Recruiting
Sponsor(s): Warren G Magnuson Clinical Center (CC) ,
Synopsis: Magnetic resonance imaging (MRI) and magnetic resonance spectroscopy (MRS) are diagnostic tests that allow researchers to look at different chemical properties of tissue. Magnetic resonance imaging and spectroscopy studies can be used to gather or evaluate information about various aspects of patient's bodies or to monitor changes in the biochemistry and physiology of patient's bodies. Unlike other diagnostic techniques (CT scan and PET scan) MRI and MRS do not use ionizing radiation. Some studies have shown that MRI is more effective at distinguishing normal parts of the anatomy from abnormal anatomy, especially in the brain. MRI has become the diagnostic test of choice for evaluating patient with multiple sclerosis. The purpose of this study is to evaluate normal volunteers and patients with a variety of diseases with magnetic resonance imaging. Researchers will attempt different magnetic resonance imaging methods and techniques as well as different levels of magnetic strength.
Details: MRI is a constantly evolving imaging modality and MR pulse sequences are often modified to improve their performance. However, many of these changes have not yet been approved by the FDA and therefore, are not considered standard of care. The major purpose of this protocol is to inform patients undergoing MR scans in the Clinical Center that they may undergo scans that are not FDA approved and to get the patient's consent for this. This is not a formal research study since specific disease entities and specific pulse sequences are not studied in a systematic way. Rather, the purpose is to give NIH patients access to gradual improvements in MR technology that would otherwise not be available to them. A secondary purpose is to inform patients about the risks of MRI and gadolinium chelates which are commonly employed in MRI.
Eligibility:
Study Type:  Observational, Natural History
Minimum Age/Maximum Age: /
Genders: Both
Protocol Entry Criteria: INCLUSION CRITERIA: All patients undergoing MRI in the Clinical Center. Patients must be able to provide informed consents. EXCLUSION CRITERIA: No contraindications to MRI. Inability to unhderstand consent form or consent process and the absence of a suitable guardian. Refusal to Participate.
Total Enrollment: 99999

Location and Contact Information:

Warren G. Magnuson Clinical Center (CC) *Recruiting*
Bethesda,  Maryland,  20892
United States
Recruiting Patient  and Public Liaison Office 1-800-411-1222


Additional Information:
Study ID Numbers:  870091;  87-CC-0091
Study Start Date: June 18, 1987
Record last reviewed: August 18, 2003
Additional information available at: clinicaltrials.gov
Clinicaltrials.gov Reference link: NCT00001219

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