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Table 4 Average difference in degree of stenosis (Δ percentage) and measured plaque diameter (Δ diameter) per heart rate between the two cardiac CT examination protocols (PP: percent points)

From: Influence of trigger type, tube voltage and heart rate on calcified plaque imaging in dual source cardiac computed tomography: phantom study

Heart rate

Δ Percentage (gating vs. high pitch)

Δ Diameter

50 bpm

2 ± 7 PP

0.10 ± 0.28 mm

70 bpm

2 ± 8 PP

0.09 ± 0.31 mm

90 bpm

2 ± 8 PP

0.07 ± 0.35 mm