Fig. 3From: Persistent or permanent atrial fibrillation is associated with severe cardioembolic stroke in patients with non-valvular atrial fibrillationPercentage of internal carotid artery occlusion in cardioembolic stroke. Only cases in which MRI could be performed and those without anticoagulation therapy before stroke onset were included. The numbers in the graphs indicate the number of the patients. PAF indicates paroxysmal atrial fibrillation, PerAF; persistent or permanent atrial fibrillation, ICA; internal carotid arteryBack to article page