An Apparatus for In Vivo Simultaneous Oxygen Probe Measurements during Renal BOLD MRI in a Porcine Model
Joshua Kaggie 1 , Vivian S Lee 1 , Robb Merrill 1 , and Glen Morrell 1
Utah Center for Advanced Imaging Research,
Radiology, University of Utah, Salt Lake City, UT,
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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