| Safety of human MRI at static fields above the FDA 8 T guideline: sodium imaging at 9.4 T does not affect vital signs or cognitive ability. | |
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MedLine Citation:
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PMID: 17969172 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To assess whether exposure to a 9.4 T static magnetic field during sodium imaging at 105.92 MHz affects human vital signs and cognitive function. MATERIALS AND METHODS: Measurements of human vital signs and cognitive ability made before and after exposure to a 9.4 T MR scanner and a mock scanner with no magnetic field are compared using a protocol approved by the U.S. Food and Drug Administration (FDA). RESULTS: Exposure to a 9.4 T static magnetic field during sodium imaging did not result in a statistically significant change in the vital signs or cognitive ability of healthy normal volunteers. CONCLUSION: Vital sign and cognitive ability measurements made before and after sodium imaging at 9.4 T suggest that performing human MRI at 105.92 MHz in a 9.4 T static magnetic field does not pose a health risk. |
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Authors:
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Ian C Atkinson; Laura Renteria; Holly Burd; Neil H Pliskin; Keith R Thulborn |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of magnetic resonance imaging : JMRI Volume: 26 ISSN: 1053-1807 ISO Abbreviation: J Magn Reson Imaging Publication Date: 2007 Nov |
Date Detail:
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Created Date: 2007-11-05 Completed Date: 2008-01-22 Revised Date: 2008-08-26 |
Medline Journal Info:
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Nlm Unique ID: 9105850 Medline TA: J Magn Reson Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 1222-7 Citation Subset: IM |
Affiliation:
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Center for Magnetic Resonance Research, University of Illinois at Chicago, Chicago, Illinois 60612, USA. ian@uic.edu |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Blood Pressure / radiation effects* Cognition / radiation effects* Device Approval Electromagnetic Fields / adverse effects* Equipment Failure Analysis Equipment Safety / standards* Female Heart Rate / radiation effects* Humans Magnetic Resonance Imaging / adverse effects* Male Maximum Allowable Concentration Middle Aged Practice Guidelines as Topic Respiratory Mechanics / radiation effects* Risk Assessment Sodium |
| Chemical | |
Reg. No./Substance:
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7440-23-5/Sodium |
| Comments/Corrections | |
Comment In:
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J Magn Reson Imaging. 2008 Apr;27(4):938-9; author reply 939
[PMID:
18383255
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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