| Comments on 'the discrepancy between human peripheral nerve chronaxie times as measured using magnetic and electric field stimuli: the relevance to MRI gradient coil safety'. | |
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MedLine Citation:
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PMID: 20124652 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A recent electrostimulation study with human subjects (Recoskie et al 2009 Phys. Med. Biol. 54 5965-79) reported a large difference between chronaxie times when stimuli were delivered to the same body locus (the wrist) either through contact electrodes (electric stimulation) or through a pulsed magnetic field (magnetic stimulation). This paper reviews the procedures and analytic methods used in that study that might account for the reported discrepancies. Factors possibly accounting for reported discrepancies include the maximum and minimum pulse widths of the experimental stimuli; variations in experimental waveforms vis-?-vis mathematically ideal functions; differences in the spatial distribution of the in situ electric field for the two methods of delivery and differences in derived chronaxie relative to strength-duration time constants. |
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Authors:
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J Patrick Reilly |
Publication Detail:
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Type: Comment; Letter Date: 2010-02-02 |
Journal Detail:
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Title: Physics in medicine and biology Volume: 55 ISSN: 1361-6560 ISO Abbreviation: Phys Med Biol Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-02-03 Completed Date: 2010-04-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: England |
Other Details:
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Languages: eng Pagination: L5-8 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Electric Stimulation
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methods* Electrodes Electromagnetic Fields* Humans Magnetic Resonance Imaging / instrumentation, methods Peripheral Nerves / physiology* Time Factors Wrist / innervation, physiology |
| Comments/Corrections | |
Comment On:
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Phys Med Biol. 2009 Oct 7;54(19):5965-79
[PMID:
19759411
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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