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Delineation of giant intracranial aneurysms by 7T MR imaging for all 7 patients by TOF-MRA (A), MPRAGE (B), magnitude imaging (C), and SWI (D). Specific structures are marked identically in all subfigures. Arrows indicate the aneurysm wall; white asterisks, intraluminal thrombus; black asterisks, flow lumen; and double daggers, brain parenchyma. Aneurysm walls show hypointense signal in TOF-MRA, magnitude imaging, and SWI and heterogeneous signal intensity in MPRAGE.
