An Apparatus for In Vivo Simultaneous Oxygen Probe Measurements during Renal BOLD MRI in a Porcine Model

An apparatus was developed that enabled invasive acquisition of renal pO2 in vivo simultaneously with renal BOLD T2* measurements. We found excellent agreement between renal pO2 and T2* measurements across different renal physiologic states. Invasive renal oxygenation measurements of pO2 are useful for validating BOLD measurements and can help elucidate factors that may confound the estimation of oxygenation from T2* measurements.

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