| Venous oxygenation mapping using velocity-selective excitation and arterial nulling. | |
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MedLine Citation:
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PMID: 22294414 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A new MRI technique to map the oxygenation of venous blood is presented. The method uses velocity-selective excitation and arterial nulling pulses, combined with phase sensitive signal detection to isolate the venous blood signal. T(2) of this signal along with a T(2) -Y calibration curve yields estimates of venous oxygenation in situ. Results from phantoms and healthy human subjects under normoxic and hypoxic conditions are shown, and venous saturation levels estimated from both sagittal sinus and gray matter-based regions of interest are compared with the related techniques TRUST and QUIXOTIC. In addition, combined with an additional scan without arterial nulling pulses, the oxygen saturation level on arterial side can also be estimated. Magn Reson Med, 2012. © 2012 Wiley Periodicals, Inc. |
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Authors:
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Jia Guo; Eric C Wong |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-1-31 |
Journal Detail:
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Title: Magnetic resonance in medicine : official journal of the Society of Magnetic Resonance in Medicine / Society of Magnetic Resonance in Medicine Volume: - ISSN: 1522-2594 ISO Abbreviation: - Publication Date: 2012 Jan |
Date Detail:
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Created Date: 2012-2-1 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8505245 Medline TA: Magn Reson Med Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2012 Wiley Periodicals, Inc. |
Affiliation:
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Department of Bioengineering, University of California, San Diego, La Jolla, California, USA. jguo@ucsd.edu. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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