Table 3 Results for automatic centreline tracking vs. manual annotation: length differences, point-based centreline distances, and corresponding PWV accuracy, all provided as median [IQR]
| Â | Failed tracings | Absolute length difference (mm) | Average centreline distance (mm) | Absolute PWV difference (m/s + %) |
|---|---|---|---|---|
HATS-1 | ||||
 Scales: 4, 5, 6, 7 mm | - | 4.0 [1.9–5.0] | 1.3 [0.9–2.0] | 0.13 [0.08–0.21], 1.9 [0.9–2.0]% |
 Scales: 4, 6 mm | - | 2.4 [1.8–4.3] | 1.3 [0.8–1.9] | 0.08 [0.06–0.19], 1.1 [0.8–1.8]% |
 Scales: 6, 8 mm | - | 5.4 [3.7–8.0] | 1.5 [1.0–2.3] | 0.22 [0.16–0.28], 2.4 [1.7–3.3]% |
CoA bSSFPa | ||||
 Scales: 4, 5, 6, 7 mm | 5 | 7.3 [5.6–8.2] | 1.6 [1.0–2.7] | 0.15 [0.11–0.20], 2.9 [2.5–3.2]% |
 Scales: 4, 6 mm | 3 | 6.4 [4.7–8.9] | 1.5 [0.9–2.7] | 0.15 [0.09–0.21], 2.8 [2.0–4.7]% |
 Scales: 6, 8 mm | 5 | 8.0 [7.1–9.9] | 2.0 [1.2–4.1] | 0.16 [0.12–0.21], 3.1 [2.6–4.0]% |
CoA CE-MRA | ||||
 Scales: 4, 5, 6, 7 mm | - | 3.9 [2.7–6.3] | 1.2 [0.8–1.9] | 0.09 [0.05–0.13], 1.5 [1.2–2.8]% |
 Scales: 4, 6 mm | - | 2.9 [1.9–4.9] | 1.2 [0.7–1.9] | 0.07 [0.03–0.12], 1.5 [0.8–2.6]% |
 Scales: 6, 8 mm | - | 5.0 [3.5–8.1] | 1.4 [0.9–2.3] | 0.11 [0.08–0.18], 2.3 [1.5–3.6]% |