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Figure 4 | Journal of Cardiovascular Magnetic Resonance

Figure 4

From: Variability of myocardial perfusion dark rim Gibbs artifacts due to sub-pixel shifts

Figure 4

In-vivo I. a) The original image retrieved from the perfusion scan, with a mild artifact in the septal region as pointed by the white arrow. b) The same magnitude image but with a shift of 0.375 pixel length in the horizontal direction, corresponding to the shift with the most prominent artifact in the same region. c) A shift of half a pixel compared to image b in the horizontal direction, showing a reduction of the DRA. Images d-f, and g-i show images a-c interpolated in the image space, and zero-filled pre-FFT respectively. Figure 4 a-c in the bottom, show the measured peak artifact signal loss in the region pointed by the arrows.

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