Fig. 3.

Relationship between test and retest measurements of gray matter CBF, CMRO₂, and OEF in seven healthy volunteers. Black circle test right hemisphere; black triangle test left hemisphere, black square test both hemispheres. Gray circle retest right hemisphere, gray triangle retest left hemisphere, gray square retest both hemispheres. ACA anterior cerebral artery, MCA middle cerebral artery, PCA posterior cerebral artery. Total brain included all flow territories.