It is well established that the hyperdense middle cerebral artery sign is a specific marker for early ischemia in anterior circulation. However, little is known about the hyperdense basilar artery sign (HDBA) in posterior circulation. Our aim was to determine whether the HDBA sign has utility in early diagnosis of acute posterior circulation stroke and prediction of short-term outcome.
Department of Neurology, Shengjing Hospital, Affiliated Hospital of China Medical University at Shenyang, 39 Hua Xiang Road, Tie Xi District, Shenyang, China.