Near Infrared Determined Cerebral Transit Time and Oxy- and Deoxyhemoglobin Relationships During Hemorrhagic Hypotension in the Dog
Many recent papers suggest that in patients with cerebrovascular diseases, cerebral blood flow (CBF) measurement alone is a poor indicator of hemodynamic reserve (Gibbs et al., 1984). A usual finding of positron emission tomography studies is a fall of the CBF/cerebral blood volume (CBV) ratio, mathematically equivalent to an increase of the mean transit time (MTT) (Zierler, 1965).
KeywordsCerebral Blood Flow Cerebral Perfusion Pressure Mean Transit Time Superior Sagittal Sinus Clearance Curve
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