Repeatability, variability and reference values of pulsed wave Doppler echocardiographic measurements in healthy Saanen goats

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 (%)
V_max (m/s)	0.99 ± 0.12	0.93 – 1.05	5.33	6.19
V_mean (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, V_max: Peak velocity of the pulmonary flow, V_mean: Mean velocity of the pulmonary flow, VTI: Velocity time integral of the pulmonary flow.

ISSN: 1746-6148