Figure 2

Right internal carotid artery severe stenosis. (A) Magnetic resonance imaging (MRI) showed an ischemic infarct at three days after onset. (B) MRI at 14 days after onset revealed increased area of the infarction. (C) Computed tomography revealed calcification (arrows) around the posterior communicating artery segment of the right internal carotid artery. (D) Cerebral digital subtraction angiography demonstrated severe stenosis at the posterior communicating artery segment of the right internal carotid artery. (E) Stent angioplasty was performed with an Enterprise stent and the severe stenosis disappeared. (F) Nine months after stent angioplasty, the stent remained patent.