Table 3.
Within-day and between-day variability and confidence interval of pulse wave Doppler echocardiographic measurements of the pulmonary flow in 10 healthy adult Saanen goats performed 3 times at 1 day interval by the same observer
| Observed Mean ± SD | Confidence Intervals (5 – 95%) | Within-day CV (%) | Between-day CV (%) | |
|---|---|---|---|---|
| Vmax (m/s) |
0.99 ± 0.12 |
0.93 – 1.05 |
5.33 |
6.19 |
| Vmean (m/s) |
0.76 ± 0.10 |
0.71 – 0.80 |
5.49 |
6.58 |
| ET (ms) |
266.7 ± 23.4 |
254.45 – 279.04 |
4.77 |
5.26 |
| VTI (cm) |
20.14 ± 2.74 |
19.02 – 21.25 |
6.03 |
6.31 |
| PEP (ms) |
51.1 ± 8.0 |
44.89 – 57.39 |
12.34 |
13.94 |
| TTP (ms) |
112.5 ± 27.1 |
95.57 – 129.44 |
15.89 |
17.17 |
| Acc slope (m/s2) |
9.31 ± 2.83 |
7.35 – 11.27 |
20.19 |
24.02 |
| Dec slope (m/s2) |
6.81 ± 1.97 |
5.71 – 7.91 |
12.54 |
18.36 |
| Dec Time (ms) |
154.3 ± 31.9 |
136.44 – 172.05 |
12.48 |
13.17 |
| SV (ml) |
77.69 ± 11.16 |
73.41 – 81.97 |
6.02 |
6.28 |
| CO (l/min) |
7.34 ± 1.50 |
6.93 – 7.74 |
6.02 |
6.30 |
| SI (ml/kg) |
1.20 ± 0.17 |
1.13 – 1.27 |
6.02 |
6.47 |
| CI (ml/kg/min) |
113.31 ± 22.88 |
106.82 – 119.80 |
6.02 |
6.53 |
| PEP/ET | 0.19 ± 0.04 | 0.16 – 0.22 | 14.86 | 16.41 |
Acc: Acceleration, CI: Cardiac index, CO: Cardiac output, CV: Coefficient of variation, Dec: Deceleration, ET: Ejection time of the pulmonary flow, PEP: Pre-ejection period of the pulmonary flow, SD: Standard deviation, SI: Stroke index, SV: Stroke volume, TPP: Time to peak of the pulmonary flow, Vmax: Peak velocity of the pulmonary flow, Vmean: Mean velocity of the pulmonary flow, VTI: Velocity time integral of the pulmonary flow.