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Figure 5


Fig. 5 —Graph shows measurement error of stenosis of soft ({approx} 50 H), intermediate ({approx} 110 H) and calcified ({approx} 1,000 H) plaques on five selected heart rate sequences (55–75 beats per minute, satisfactory image quality) on retrospective ECG-gated CT angiography (CTA) (gray bars) and prospective ECG-triggered CTA (white bars). Bars and vertical lines indicate mean and SD, respectively.