Table 2 Echocardiographic parameters presented in all different examiner-analyst scenarios
Scenario | GLS | LVEF | ||
|---|---|---|---|---|
Expert echocardiographer | ||||
A | Trainee analyst | −19.1% (±3.4) | 54.5% (±8.2) | |
Expert analyst | −18.7% (±3.2) | 53.6% (±8.6) | ||
ICC | 0.94 (0.84–0.97) | 0.71 (0.47–0.84) | 4.04 (p < 0.001) † | |
Fixed bias | −0.76% (−3.55–2.03) | −0.27% (−16.56–16.02) | 0.40 (p = 0.692) * | |
Trainee echocardiographer | ||||
B | Trainee analyst | −19.4% (±3.5) | 50.3% (±8.2) | |
Expert analyst | −18.3% (±3.5) | 52.1% (±8.9) | ||
ICC | 0.91 (0.72–0.96) | 0.76 (0.57–0.87) | 2.49 (p < 0.001) † | |
Fixed bias | 1.19% (−4.61–2.22) | −1.4% (−15.79–12.98) | 2.36 (p < 0.02) * | |
Each operator analyzing their own images | ||||
C | Trainee | −19.4% (±3.5) | 50.3% (±8.2) | |
Expert | −18.7% (±3.2) | 53.6% (±8.6) | ||
ICC | 0.89 (0.74–0.95) | 0.63 (0.32–0.80) | 3.26 (p < 0.001) † | |
Fixed bias | −0.97% (−4.58–2.64) | −4.08% (−20.78–12.62) | 2.45 (p < 0.02) * | |
Trainee analyst | ||||
D | Trainee Images | −19.4% (±3.5) | 50.3% (±8.2) | |
Expert images | −19.1% (±3.4) | 54.5% (±8.2) | ||
ICC | 0.93 (0.88–0.96) | 0.13 (−0.45–0.49) | 7.17 (< 0.001) † | |
Fixed bias | 0.21% (−4.58–2.64) | −4.08% (−20.78–12.62) | − 0.02 (p = 0.98) * | |
Expert analyst | ||||
E | Trainee Images | −18.3% (±3.5) | 52.1% (±8.9) | |
Expert images | −18.3% (±3.2) | 53.6% (±8.6) | ||
ICC | 0.91 (0.84–0.95) | 0.70 (0.47–0.83) | 3.1 (0.002) † | |
Fixed bias | 0,07 (−3.64–3.78) | −2.17 (−18.16–13.82) | 1.84 (p = 0.07) * | |
Trainee imaging versus expert imaging | ||||
F | EDD | E/e’ | ||
ICC | 0.91 (0.85–0.95) | 0.92 (0.85–0.95) | ||
Fixed bias | −0.43 mm | 0.25 | ||