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Abstract #1963

Accuracy of magnetic resonance based susceptibility measurements

Hannah E Erdevig1,2, Stephen E Russek1, Slavka Carnicka1, Karl F Stupic1, and Kathryn E Keenan1

1Precision Measurement Laboratory, NIST, Boulder, CO, United States, 2Department of Physics, University of Colorado Boulder, Boulder, CO, United States

We examined the accuracy of MR-based susceptibility quantification relative to conventional measurements in preparation of making a standard susceptibility phantom. SQUID magnetometry of tissue mimics provides absolute accuracy of approximately 100 ppb while MR-based techniques give relative accuracy of 10 ppb.

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