Results: Percentage of brain artery lesions location: 50% at small cerebral and other artery; 26% at the middle cerebral artery; 6% at Internal carotid artery and 6% for combination of Internal carotid artery and middle cerebral artery After being discharge, 20.0% patent made good clinical progress (NIHSS decreased more than 10 point) while 48% showed NIHSS decreased from 4 - 9 point.