The probability of achieving recanalization ( arterial occlusion lesion , 2-3 ) of the primary arterial occlusive lesion ( relative risk , 1.3 ; 99 % confidence interval , 1.0-1 .8 ) or achieving thrombolysis in cerebral ischemia score 2b/3 reperfusion ( relative risk 2.0 ; 99 % confidence interval , 1.2-3 .2 ) was higher among subjects with higher ASPECTS .