The "OK" sign: an unusual angiographic appearance of basilar artery fenestration.
Prabhakaran
Shyam
S
Rush University Medical Center, Department of Neurological Sciences, Suite 1121, 1725 W Harrison St, Chicago, IL 60612, USA. Shyman_Prabhakaran@rush.edu
Lopes
Demetrius K
DK
D000328:Adult; D001488:Basilar Artery / Q000002:abnormalities / Q000000981:diagnostic imaging*; D002533:Cerebral Angiography / Q000379:methods; D005260:Female; D006801:Humans