Exchange-weighted xenon-129 nuclear magnetic resonance system and related method
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United States of America Patent
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Sep 28, 2010
Grant Date -
Sep 27, 2007
app pub date -
Mar 9, 2005
filing date -
Mar 10, 2004
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Abstract
Method and system that provides, among other things, the capability for using hyperpolarized xenon-129 as a probe to non-invasively and non-destructively characterize important properties of certain structures or materials into which hyperpolarized xenon-129 can be introduced and wherein the xenon exists in two or more chemically-shifted states that are in exchange High-resolution MR images can be generated in a fraction of a second wherein the associated signal intensities reflect material properties that characterize the gas exchange among the different states. For example, in the human or animal lung, the system and related method can exploit the differences in gas-exchange characteristics between healthy and diseased lung tissue to generate high-resolution, high signal-to-noise cross-sectional MR images that permit non-invasive regional detection of variations in lung tissue structure with a combination of spatial and temporal resolution that is unmatched by any current imaging modality.
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