Document Detail


Potential hazards in NMR imaging: heating effects of changing magnetic fields and RF fields on small metallic implants.
MedLine Citation:
PMID:  6974985     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To test if changing magnetic fields and radiofrequency fields used in nuclear magnetic resonance imagers could induce electrical currents capable of causing localized tissue heating in metal surgical clips and prostheses, steel surgical clips, copper wire clips, and hip prostheses were exposed to fields greater than those used in the nuclear magnetic resonance imager. Observations indicated that no significant heating should be expected from implanted surgical clips during exposure. The heating of larger metallic implants should be further investigated.
Authors:
P L Davis; L Crooks; M Arakawa; R McRee; L Kaufman; A R Margulis
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  AJR. American journal of roentgenology     Volume:  137     ISSN:  0361-803X     ISO Abbreviation:  AJR Am J Roentgenol     Publication Date:  1981 Oct 
Date Detail:
Created Date:  1981-12-15     Completed Date:  1981-12-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7708173     Medline TA:  AJR Am J Roentgenol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  857-60     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Hot Temperature*
Humans
Magnetic Resonance Spectroscopy*
Magnetics
Metals*
Prostheses and Implants
Radio Waves
Surgical Equipment*
Tomography / adverse effects*,  methods
Chemical
Reg. No./Substance:
0/Metals

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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