Determination of whole-brain oxygen extraction fractions by fast measurement of blood T(2) in the jugular vein.

  title={Determination of whole-brain oxygen extraction fractions by fast measurement of blood T(2) in the jugular vein.},
  author={Qin Qin and Ksenija Grgac and P C M van Zijl},
  journal={Magnetic resonance in medicine},
  volume={65 2},
The oxygen extraction fraction of the brain reports on the balance between oxygen delivery and consumption and can be used to assess deviations in physiological homeostasis. This is relevant clinically as well as for calibrating blood oxygen level-dependent functional MRI responses. Oxygen extraction fraction is reflected in the arteriovenous difference in oxygen saturation fraction (Y(v) - Y(a) ), which can be determined from venous T(2) values when arterial oxygenation is known. A pulse… CONTINUE READING


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