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The quantification of cerebral autoregulation always involves variation seen in cerebral blood flow in relation to changes in blood pressure. This blood pressure variation can either be evoked or spontaneous. Evoked blood pressure changes can be the result of:
*releasing Releasing leg cuffs that were inflated above systolic pressure*breathing Breathing at a fixed rate*performing Performing a Valsalva maneuver*performing Performing squat-stand or sit-stand maneuvers*lower Lower body negative pressure*pharmaceutical Pharmaceutical methods to raise or lower blood pressure
The quantification depends on the experimental setup and can involve methods such as regression, cross-correlation, transfer function analysis or fitting mathematical models.
