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Fig. 3 | Journal of Cardiovascular Magnetic Resonance

Fig. 3

From: Fully quantitative pixel-wise analysis of cardiovascular magnetic resonance perfusion improves discrimination of dark rim artifact from perfusion defects associated with epicardial coronary stenosis

Fig. 3

Raw Stress Perfusion CMR images and Signal Intensity Curves in Dark Rim Artifacts and True Perfusion Defect. The dark rim artifacts in the septum (arrows) has three findings: (1) a decrease in the signal intensity curve prior to contrast arrival, (2) a delay in enhancement relative to the remote zone, and (3) a lower signal intensity throughout the upslope and peak of myocardial enhancement. However, the signal intensity curves in the midmyocardium and epicardium are not affected by the dark rim artifacts. In the true perfusion defect, the amplitude, upslope and persistence of the signal intensity abnormalities are all different than the remote region

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