Geographic and sex difference in the distribution of intracranial atherosclerosis in China
First author:Pu Yuehua
Corresponding author:Wang Yongjun
2013-06-11
Journal:Stroke
Publication type: Original Contributions
IF(IF): 7.914
PMID:
BACKGROUND AND PURPOSE: Geographic variation and sex difference in the distribution of intracranial atherosclerosis (ICAS) have not been fully discussed before in Chinese patients with cerebral ischemia. We performed this study with the aim to investigate geographic and sex difference in the distribution of ICAS in China. METHODS: In this prospective multicenter study, we evaluated 2864 consecutive patients who experienced an acute cerebral ischemia within 7 days of symptom onset in 22 hospitals in China. All the inclusive patients underwent 3-dimensional time-of-flight MR angiography and duplex color Doppler ultrasound or contrast-enhanced MR angiography to document the presence of intracranial or extracranial stenosis. Intracranial large-artery atherosclerosis was defined as >/=50% diameter reduction on MR angiography.