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Fig. 6 | Critical Care

Fig. 6

From: Brain BOLD MRI O2 and CO2 stress testing: implications for perioperative neurocognitive disorder following surgery

Fig. 6

a–c Dynamism of the response of CBF to alterations in ET gases in a single subject. a CVR difference map of hypercapnia—baseline settings at normoxia. b CVR difference of hyperoxia—baseline settings at normocapnia. c CVR difference of hyperoxia/hypocapnia—baseline. The latter situation is often present during anesthesia. The large decrement in regional CBF is diffusely evident. These data are from subject 10

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Critical Care

ISSN: 1364-8535