Figure 1

Patient with bilateral carotid endarterectomy five and a half years previously (2038 days); T1, T2 and PD weighting of both common carotid arteries shown (left). The right common carotid artery demonstrates a normal post-operative appearance, both on CMR and ultrasound (top right). However, a 30% restenosis of the left common carotid was noted on ultrasound (bottom right), which was seen as a crescent of predominantly low signal surrounding the artery on CMR (white arrows).