Arjen Lindenholz

68 CHAPTER 3 Figure 10. 7T transverse T 1 -weighted MPIR-TSE (A and D) , whole brain T 1 -weighted ( B and E) and T 2 - weighted MPIR-TSE images ( C and F ) of a 31-year-old man with moyamoya disease. The vessel wall of the left distal ICA (left white arrow in A-C ) is slightly more hyperintense compared with the right distal ICA (right white arrow in A-C ) and basilar artery (black arrow in A-C ). Both distal ICAs are relatively narrow compared with the basilar artery. (D-F) The left MCA is seen to be almost occluded with vessel wall thickening (dashed arrow). The vessel walls of the P1 segment of the PCA are also visible (white arrows). Figure reprinted with permission from: AG van der Kolk. 48