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. 2020 Oct 7;31(3):815–826. doi: 10.1007/s00062-020-00963-6

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© The Author(s) 2020

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Fig. 2 — Effect of noise and pulsation artifacts on image quality in a 75-year-old female patient (same patient as in Fig. 1) with embolic ischemia of the right cerebellum and the left precentral gyrus as shown in coronal maximum intensity projections (slice thickness 15 mm). Relaxation-Enhanced Angiography without Contrast and Triggering (REACT, water-only) enables improved delineation of the branches of the aortic arch (wide arrows) as well as increased signal and contrast of the carotid arteries (thin arrows) compared to contrast-enhanced magnetic resonance angiography (CE-MRA) in which the branches of the aortic arch present pulsation artifacts and a high level of image noise leading to impaired vessel delineation