an index of cerebral perfusion reserve ( res % ) , defined as the percent change of regional cerebral blood flow over baseline per mm hg of end-tidal co2 tension , was determined for each middle cerebral artery ( mca ) territory in patients with unilateral carotid distribution transient ischemic attacks or minor cerebrovascular accidents and was compared with that of age-matched , neurologically normal volunteers .
C0007787
transient ischemic attacks
C0038454
cerebrovascular accidents