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Detecting microcirculatory changes in blood oxygen state with steady-state free precession imaging.

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Title: Detecting microcirculatory changes in blood oxygen state with steady-state free precession imaging.
Authors: Dharmakumar, Rohan1, Qi, Xiuling1, Hong, Juimiin1, Wright, Graham A.1
Source: Magnetic Resonance in Medicine. Jun2006, Vol. 55 Issue 6, p1372-1380. 9p.
Abstract: Recently, it has been demonstrated that oxygen-weighted images of whole blood can be obtained with steady-state methods. In this article, based on computational and experimental models, we investigate the potential for employing this technique to monitor oxygen changes in microcirculation. Results show that oxygen-sensitive images of rabbit kidney and muscle may be obtained at high signal-to-noise ratio within a few seconds. The results also show that in steady-state free precession imaging, in addition to the exchange mechanism that generates oxygen contrast in blood, there are additional mechanisms that provide oxygen-sensitive contrast in microcirculation. Magn Reson Med, 2006. © 2006 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]
Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: Recently, it has been demonstrated that oxygen-weighted images of whole blood can be obtained with steady-state methods. In this article, based on computational and experimental models, we investigate the potential for employing this technique to monitor oxygen changes in microcirculation. Results show that oxygen-sensitive images of rabbit kidney and muscle may be obtained at high signal-to-noise ratio within a few seconds. The results also show that in steady-state free precession imaging, in addition to the exchange mechanism that generates oxygen contrast in blood, there are additional mechanisms that provide oxygen-sensitive contrast in microcirculation. Magn Reson Med, 2006. © 2006 Wiley-Liss, Inc. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Magnetic Resonance in Medicine is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1002/mrm.20911
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