The aim is to evaluate the change in intracranial arterial vasculature after carotid revascularization using an intracranial feature extraction (iCafe) technique for quantitative analysis of intracranial arteries from 3D time-of-flight magnetic resonance angiography (TOF MRA). Twenty subjects who received carotid revascularization were enrolled and all patients underwent MRA scans three times: before, within 3 days after, and six months after revascularization. The dataset was processed blindly by 4 reviewers using iCafe. Length and volume of intracranial artery and number of intracranial artery branches increased after surgery. This result suggested increased cerebral blood flow after carotid revascularization.