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. Author manuscript; available in PMC: 2013 Nov 28.
Published in final edited form as: AJR Am J Roentgenol. 2013 Sep;201(3):10.2214/AJR.12.9544. doi: 10.2214/AJR.12.9544

Fig. 10. 61-year-old woman with left embolic middle cerebral artery ischemia and clear diffusion-perfusion mismatch due to a symptomatic extracranial internal carotid artery stenosis.

Fig. 10

A–F, Multimodal stroke protocol with diffusion-weighted (A), T2-weighted (B), mean transit time from dynamic susceptibility contrast (DSC) perfusion MR (C), intracerebral time-of-flight MR angiographic (MRA) (D) images and contrast-enhanced MRA images of brain supplying arteries (E and F, different maximum intensity projections). Double injection protocol with two times 0.05 mmol/kg gadobutrol at 3 mL/s for MRA and 5 mL/s for perfusion with 20-mL saline flush each. MRA is performed before DSC imaging to avoid influences from circulating contrast media. In DSC imaging changes are most pronounced on mean transit time maps.