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Table 1 Mean, standard deviation, minimum and maximum measurements taken from the intensity profile across the myocardium.

From: 1015 Quantitative assessment of the dark rim artifact in first pass perfusion images: effect of stress and rest

  Rest No. of artifact images Stress No. of artifact images Rest Frequency, % of total images Stress Frequency, % of total images Rest Severity, % signal loss Rest per image Stress Severity, % signal loss Stress per image Rest Maximum Severity, % signal loss Stress Maximum Severity, % signal loss
Mean 9.0 8.0 20 20 32.9 31.5 49.6 49.0
SD 2.5 2.1 0 0 9.5 10.3 16.1 14.9
Min 5.0 3.0 10 10 18.0 15.8 26.0 22.0
Max 14.0 12.0 30 20 59.1 54.8 90.0 84.0