Cerebral Border Zones between Distal End Branches of Intracranial Arteries: MR Imaging

摘要: This study had institutional review board approval; informed consent was obtained from all participants. The purpose to prospectively determine whether a longer arterial transit time (ATT), the proximal vasculature in neck toward distal end branches of intracranial arteries, can be utilized identify cerebral border zone regions. A magnetic resonance (MR) imaging method based on noninvasive spin-labeling (ASL) perfusion MR with image acquisition at series increasing delay times used quantify regional ATTs. Fifteen healthy volunteers (age range, 22–34 years; nine men, six women) were included. ASL demonstrated an increase ATT regions, extending frontal and occipital horns lateral ventricle parietooccipital cortices, relative non–border Cerebral blood flow volume these anterior posterior regions sig...