From: Validation of 3D echocardiographic volume detection of left atrium by human cadaveric casts
cast no. | 3DE volume: GE 4D LVQ | 3DE volume: TomTec LV | 2DE volume | ||||||
---|---|---|---|---|---|---|---|---|---|
meas. 1 (ml) | meas. 2 (ml) | difference (ml) | meas. 1 (ml) | meas. 2 (ml) | difference (ml) | meas. 1 (ml) | meas. 2 (ml) | difference (ml) | |
1 | 36 | 35 | −1 | 36 | 40 | 4 | 35 | 35 | 0 |
2 | 94 | 88 | −6 | 103 | 102 | −1 | 106 | 103 | −3 |
3 | 43 | 44 | 1 | 50 | 59 | 9 | 55 | 66 | 11 |
4 | 43 | 41 | −2 | 42 | 40 | −2 | 36 | 33 | −3 |
5 | 45 | 47 | 2 | 50 | 46 | −4 | 40 | 48 | 8 |
6 | 68 | 57 | −11 | 70 | 67 | −3 | 68 | 68 | 0 |
7 | 62 | 60 | −2 | 68 | 72 | 4 | 76 | 84 | 8 |
mean (95% CI) | 55.9 | 53.1 | −2.7 (−6.8–1.4) | 59.9 | 60.9 | 1.0 (−3.4–5.4) | 59.4 | 62.4 | 3.0 (−2.4–8.4) |
SD | 20.3 | 17.7 | 4.5 | 22.8 | 22.2 | 4.8 | 26.0 | 25.8 | 5.8 |
range | 36–94 | 35–88 | −11–2 | 36–103 | 40–102 | −4–9 | 35–106 | 33–103 | −3–11 |
LOA | −11.5–6.0 | −8.3–10.3 | −8.4–14.4 | ||||||
r | 0.982, p = 0.0001 | 0.978, p = 0.0001 | 0.975, p = 0.0002 | ||||||
ICC (95% CI) | 0.967 (0.819–0.994), p = 0.00003 | 0.980 (0.894–0.996), p = 0.00001 | 0.972 (0.857–0.995), p = 0.00002 |