In vivo correlation between blood T2* and oxygen saturation

  • Li D
  • Waight D
  • Wang Y
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Abstract

The in vivo relationship between blood T2* and oxygen saturation was investigated. A wide range of blood oxygen saturation levels was created in pigs by altering the ventilation rate. Blood T2* was measured in vivo in the abdominal aorta and the inferior vena cava, corresponding to each oxygen saturation level. Our results indicate that it is possible to measure blood T2* in vivo reliably with an MR technique we previously proposed. Blood T2* correlates closely with oxygen saturation levels over a wide range, and the relationship between blood T2* measured in vivo and oxygen saturation can be approximated by a linear function.

Author-supplied keywords

  • *Magnetic Resonance Imaging
  • Animal
  • Aorta, Abdominal/anatomy & histology/*physiology
  • Blood Flow Velocity
  • Comparative Study
  • Hematocrit
  • Hemoglobins/*metabolism
  • Oxygen/*blood
  • Reproducibility of Results
  • Swine
  • Vena Cava, Inferior/anatomy & histology/*physiolog

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  • PMID: 9848734

Authors

  • D Li

  • D J Waight

  • Y Wang

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