Table 2 Absolute plaque/stenosis diameters (true diameters: 12.5%: 0.5 mm, 25%: 1.0 mm, 50%: 2.0 mm), measured vessel diameters (true diameter 4.0 mm) per heart rate and cardiac CT method
True stenosis [%] | Heart rate [bpm] | Method | Plaque diameter [mm] | Vessel diameter [mm] | Stenosis [%] | Deviation [PP] |
|---|---|---|---|---|---|---|
12.5% | 50 | High pitch | 1.13 ± 0.19 | 4.17 ± 0.35 | 27.0 ± 3.5 | 14.5 |
Gating | 1.03 ± 0.19 | 4.23 ± 0.45 | 24.4 ± 3.7 | 11.9 | ||
70 | High pitch | 1.12 ± 0.18 | 4.14 ± 0.35 | 27.1 ± 3.4 | 14.6 | |
Gating | 1.03 ± 0.19 | 4.26 ± 0.41 | 24.1 ± 3.6 | 11.6 | ||
90 | High pitch | 1.11 ± 0.19 | 4.15 ± 0.30 | 26.7 ± 3.5 | 14.2 | |
Gating | 1.03 ± 0.19 | 4.22 ± 0.40 | 24.4 ± 3.4 | 11.9 | ||
25% | 50 | High pitch | 1.63 ± 0.34 | 4.35 ± 0.38 | 37.2 ± 5.7 | 12.2 |
Gating | 1.53 ± 0.33 | 4.35 ± 0.49 | 35.0 ± 4.6 | 10.0 | ||
70 | High pitch | 1.65 ± 0.33 | 4.33 ± 0.36 | 37.8 ± 5.1 | 12.8 | |
Gating | 1.53 ± 0.34 | 4.35 ± 0.51 | 34.8 ± 4.6 | 9.8 | ||
90 | High pitch | 1.66 ± 0.35 | 4.29 ± 0.39 | 38.4 ± 5.8 | 13.4 | |
Gating | 1.61 ± 0.36 | 4.36 ± 0.51 | 36.7 ± 5.2 | 11.7 | ||
50% | 50 | High pitch | 2.19 ± 0.37 | 4.06 ± 0.20 | 53.9 ± 8.0 | 3.9 |
Gating | 2.08 ± 0.28 | 3.95 ± 0.18 | 52.7 ± 6.2 | 2.7 | ||
70 | High pitch | 2.16 ± 0.36 | 4.00 ± 0.23 | 54.0 ± 7.9 | 4.0 | |
Gating | 2.11 ± 0.27 | 3.99 ± 0.14 | 52.9 ± 6.1 | 2.9 | ||
90 | High pitch | 2.20 ± 0.38 | 4.05 ± 0.21 | 54.4 ± 8.4 | 4.4 | |
Gating | 2.11 ± 0.32 | 3.96 ± 0.19 | 53.1 ± 6.7 | 3.1 |