Arjen Lindenholz

60 CHAPTER 3 Figure 4. (A and B) 68-year-old female with a recent right-sided ischemic stroke, successfully treated with thrombolytic therapy. Concentric enhancing vessel wall thickening is seen in the right MCA (white arrow) compared with the normal appearing distal ICA (arrowhead) on 3T T 1 -weighted (A) and 7T T 1 - weighted MPIR-TSE (Magnetization-Prepared Inversion Recovery Turbo Spin Echo) (B) postcontrast vessel wall images. (C and D) 72-year-old female with a recent transient ischemic attack. Postcontrast 3T (C) and 7T (D) vessel wall images show an eccentric vessel wall lesion (arrow) in the left MCA (just distal to the intracranial internal carotid artery bifurcation).