Fig. 7From: Brain BOLD MRI O2 and CO2 stress testing: implications for perioperative neurocognitive disorder following surgerya–c A single subject study of the inverse response to the O2 ramp mapped on to their anatomic image in the sagittal, axial, and coronal views. Bilateral inverse response to the increase in O2 tension is seen in the hippocampi and midline in the hippocampal commissure. These data are from subject 10Back to article page