Fig. 3

Imaging of the occluded right internal and external carotid arteries treated with endovascular stenting. a Head computed tomography image reveals neither intracranial hemorrhage nor early signs of brain infarction at the onset. b Angiography image shows that the bulb of the right internal carotid artery and the right external carotid artery is occluded by a giant thrombus. c The right internal and external carotid arteries are successfully revascularized by introducing a 10 mm × 40 mm PRECISE stent (Cordis, Miami, FL, USA) at the right carotid bifurcation. d Carotid Doppler ultrasonography image shows that the giant thrombus (TH) remains within the right common carotid artery, protruding from the stent. The blue arrow indicates the recanalized lumen. e Magnetic resonance image obtained on the day after recanalization shows no sign of cerebral infarction. f Magnetic resonance angiography image shows the patency of the vasculature (including the right internal carotid artery). g Carotid Doppler ultrasonography image shows that the thrombus (TH) remains within the right internal carotid artery 10 days after recanalization. h Carotid Doppler ultrasonography image shows that the thrombus has completely disappeared 67 days following recanalization