title: Regional cerebral blood flow asymmetries in a group of 189 normal subjects at rest.
abstract: Regional cerebral blood flow (rCBF) asymmetries were studied in 189 subjects (96 males and 93 females) at rest with the 133Xenon inhalation method using a fixed detector system. rCBF asymmetries in the resting condition were very small, nevertheless a significant (p less than 0.001) effect for their topographical distribution was present, reflecting higher rCBF in the right fronto-temporal and left parieto-occipital regions. rCBF asymmetries were not correlated with age, and there were no significant differences between males and females. Asymmetries are therefore useful from a statistical point of view in detecting rCBF abnormalities in the resting condition: they are more stable than absolute values in normal subjects and no matching according to age or sex is required when statistical comparisons are performed.
authors.affiliation: Institute of Neurophysiopathology, University, Genoa, Italy.
authors.forename: G
authors.initials: G
authors.lastname: Rodriguez
authors.forename: R
authors.initials: R
authors.lastname: Coppola
authors.forename: F
authors.initials: F
authors.lastname: De Carli
authors.forename: S
authors.initials: S
authors.lastname: Francione
authors.forename: S
authors.initials: S
authors.lastname: Marenco
authors.forename: F
authors.initials: F
authors.lastname: Nobili
authors.forename: J
authors.initials: J
authors.lastname: Risberg
authors.forename: G
authors.initials: G
authors.lastname: Rosadini
authors.forename: S
authors.initials: S
authors.lastname: Warkentin
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging / Q000502:physiology; D000704:Analysis of Variance; D002560:Cerebrovascular Circulation; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012016:Reference Values; D012146:Rest; D012727:Sex Characteristics