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

Table 4 Within-day and between-day variability and confidence interval of pulse wave Doppler echocardiographic measurements of the tricuspid 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 (%)
E-Peak
E_max (m/s)	0.67 ± 0.15	0.60 – 0.73	9.82	10.34
E_mean (m/s)	0.49 ± 0.12	0.44 – 0.54	10.11	10.88
VTI (cm)	10.60 ± 3.10	9.14 – 12.06	15.21	15.69
ET (ms)	220.6 ± 54.5	196.34 – 244.77	11.16	12.53
Dec Time (ms)	108.9 ± 34.7	86.23 – 131.72	22.03	23.81
Dec slope (m/s²)	6.89 ± 3.09	5.02 – 8.74	25.65	30.87
A-Peak
A_max (m/s)	0.58 ± 0.12	0.51 – 0.64	10.70	12.29
A_mean (m/s)	0.45 ± 0.10	0.39 – 0.49	11.07	12.60
VTI (cm)	5.11 ± 1.24	4.30 – 5.91	16.20	17.97
ET (ms)	117.3 ± 24.2	103.86 – 130.77	11.41	13.08
E/A	1.16 ± 0.19	1.03 – 1.29	11.14	12.35

A_max: peak velocity of the tricuspid flow during the atrial contraction, A_mean: mean velocity of the tricuspid flow during the atrial contraction, CI: Confidence Intervals, CV: Coefficient of variation, Dec: Deceleration, E_max: peak velocity of the tricuspid flow during the early ventricular filling, E_mean: mean velocity of the tricuspid flow during the early ventricular filling, ET: Ejection time, SD: Standard deviation, VTI: Velocity time integral.

ISSN: 1746-6148