Document Detail

Magnetic resonance imaging of time-varying magnetic fields from therapeutic devices.
MedLine Citation:
PMID:  23355446     Owner:  NLM     Status:  MEDLINE    
While magnetic resonance imaging of static magnetic fields generated by external probes has been previously demonstrated, there is an unmet need to image time-varying magnetic fields such as those generated by transcranial magnetic stimulators and radiofrequency hyperthermia probes. A method to image such time-varying magnetic fields is introduced in this study. This article presents the theory behind the method and provides proof of concept by imaging time-varying magnetic fields generated by a figure-eight coil inside simple phantoms over a range of frequencies and intensities using a 7T small animal MRI scanner. The method was able to reconstruct the three-dimensional components of the oscillating magnetic field vector.
Luis Hernandez-Garcia; Vivek Bhatia; Krishan Prem-Kumar; Magnus Ulfarsson
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural     Date:  2013-01-28
Journal Detail:
Title:  NMR in biomedicine     Volume:  26     ISSN:  1099-1492     ISO Abbreviation:  NMR Biomed     Publication Date:  2013 Jun 
Date Detail:
Created Date:  2013-04-23     Completed Date:  2013-11-08     Revised Date:  2014-06-03    
Medline Journal Info:
Nlm Unique ID:  8915233     Medline TA:  NMR Biomed     Country:  England    
Other Details:
Languages:  eng     Pagination:  718-24     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 John Wiley & Sons, Ltd.
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MeSH Terms
Magnetic Fields*
Magnetic Resonance Imaging / methods*
Phantoms, Imaging
Radio Waves / therapeutic use*
Time Factors
Transcranial Magnetic Stimulation / instrumentation*
Grant Support

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

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