Treatment of rupture-prone carotid atherosclerotic plaques, by means of endarterectomy, is only beneficial for patients with unstable plaques, which comprise only 16% of the patient population [1]. It is therefore of great interest to assess morphology, geometry and mechanical deformation of the plaque and its components, to prevent unnecessary treatment. However, due to the complex geometry of stenotic arteries, 3D information at both high temporal and spatial resolution is required. Besides, assessment of plaque morphology in vivo can still not be routinely performed. Therefore, one has to rely on in vitro methods to obtain morphology and mechanical properties, and thus rupture risk.

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