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Effect of a static magnetic field on blood flow to the metacarpus in horses

Steyn, Phillip F. and Ramey, David W. and Kirschvink, Joseph and Uhrig, John (2000) Effect of a static magnetic field on blood flow to the metacarpus in horses. Journal of the American Veterinary Medical Association, 217 (6). pp. 874-877. ISSN 0003-1488. http://resolver.caltech.edu/CaltechAUTHORS:20130130-134130648

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Abstract

Objective—To determine the effect of a static magnetic field on relative blood flow to the metacarpus of horses. Design—Randomized controlled clinical trial. Animals—6 healthy adult horses. Procedure—Red blood cells were radiolabeled in vivo by administration of technetium Tc 99m (pyro- and trimeta-) phosphates, and scintigraphic images were obtained 30 minutes later. A magnetic wrap that emitted a static magnetic field was applied to 1 metacarpus and a control wrap was applied to the contralateral metacarpus. Forty-eight hours later, the wraps were removed, and scintigraphy was repeated. Relative perfusion ratios were calculated by dividing mean count per pixel for the portion of the metacarpus under the wrap by mean count per pixel for a portion of the distal aspect of the antebrachium that was not in the magnetic field. Results—The difference between the relative perfusion ratio prior to application of the wrap and the ratio after application of the wrap for limbs that received the magnetic wrap was not significantly different from the difference in ratio for limbs that received the control wrap. Conclusions and Clinical Relevance—Results suggest that in horses, the static magnetic field associated with application of commercially available magnetic wraps for 48 hours does not increase blood flow to the portion of the metacarpus underneath the wrap. (J Am Vet Med Assoc 2000;217:874–877)


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.2460/javma.2000.217.874DOIUNSPECIFIED
http://avmajournals.avma.org/doi/abs/10.2460/javma.2000.217.874PublisherUNSPECIFIED
Additional Information:© 2000 American Veterinary Medical Association.
Record Number:CaltechAUTHORS:20130130-134130648
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130130-134130648
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36690
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:31 Jan 2013 00:07
Last Modified:31 Jan 2013 00:07

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