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The magnetic field dependence of proton spin relaxation in tissues

โœ Scribed by Robert G. Bryant; Daniel Ari Mendelson; Cathy Coolbaugh Lester


Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
627 KB
Volume
21
Category
Article
ISSN
0740-3194

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โœฆ Synopsis


Abstract

The magnetic field dependence of waterโ€proton relaxation is reported for a simple protein solution, a crossโ€linked protein solution, and a series of rat tissues, fresh, dried and rehydrated. The shape of the magnetic field dependence associated with water proton relaxation in tissues is accounted for by magnetic dipoleโ€dipole interactions between the mobile water spins and the immobile spin populations of the nonrotating components of the tissue coupling the behavior of the immobilized spin system to that of the mobile water spin system. The effect of this coupling is to impart the field dependence of the relaxation associated with the immobilized spin population to that of the mobile water spins that are observed in most relaxation and imaging experiments. ยฉ 1991 Academic Press, Inc.


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