The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1999
Filed:
Jun. 24, 1997
Board of Regents, The University of Texas System, Austin, TX (US);
Abstract
New methods for rapid, noninvasive determination of sodium ion in vivo are described. The methods are useful for assessing liver and other organ injury based on a nuclear magnetic resonance determination of intracellular and extracellular sodium in the damaged tissue. A shift reagent, TmDOTP.sup.5-, is used in vivo to produce baseline resolved peaks of .sup.23 Na. Excellent results are achieved with significantly less TmDOTP.sup.5- than with other conventional .sup.23 Na shift reagents such as DyTTHA.sup.3-. In contrast to use in isolated perfused heart tissue, TmDOTP.sup.5- solutions are employed in vivo without added calcium ion. The method has been applied to animal burn models. Results show that intracellular sodium ion levels are dramatically increased, thus providing a rapid assessment of liver function. Similar methods may be applied to the determination of intra- and extracellular potassium ion.