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

Table 2 Comparison of pulse wave Doppler echocardiographic parameters of the mitral flow obtained on the right and on the left side in 10 healthy adult Saanen goats, and within-day and between-day variability of these measurements performed on 3 following days by the same observer

	LSMean ± SE Right side	LSMean ± SE Left side	Observed Mean ± SD	Confidence Intervals (5 – 95%)	Within-day CV (%)	Between-day CV (%)
E-Peak
E_max (m/s)	0.57 ± 0.005	0.59 ± 0.005 *	0.58 ± 0.04	0.52 – 0.63	7.23	10.66
E_mean (m/s)	0.40 ± 0.004	0.42 ± 0.004 *	0.41 ± 0.03	0.37 – 0.45	7.97	10.80
VTI (cm)	8.84 ± 0.10	9.52 ± 0.10 *	9.18 ± 0.97	8.07 – 10.29	10.52	13.81
ET (ms)	224.57 ± 2.52	227.54 ± 2.52	226.06 ± 22.17	199.01 – 253.11	9.91	13.65
Dec Time (ms)	119.99 ± 1.95	104.99 ± 1.95 *	112.49 ± 19.12	91.56 – 133.41	17.75	21.22
Dec slope (m/s²)	5.17 ± 0.20	6.74 ± 0.20 *	5.96 ± 1.45	3.78 – 8.13	22.35	41.53
A-Peak
A_max (m/s)	0.51 ± 0.005	0.52 ± 0.005	0.51 ± 0.05	0.46 – 0.56	10.24	11.50
A_mean (m/s)	0.39 ± 0.004	0.39 ± 0.004	0.39 ± 0.04	0.34 – 0.43	11.42	12.79
VTI (cm)	4.27 ± 0.06	4.26 ± 0.06	4.27 ± 0.64	3.61 – 4.92	14.98	17.43
ET (ms)	110.74 ± 1.44	110.44 ± 1.44	110.59 ± 14.76	95.17 – 126.01	13.26	15.90
E_max/A_max	1.12 ± 0.01	1.15 ± 0.01	1.14 ± 0.11	1.01 – 1.26	9.31	12.35

A_max: peak velocity of the mitral flow during the atrial contraction, A_mean: mean velocity of the mitral flow during the atrial contraction, CV: Coefficient of variation, Dec: Deceleration, E_max: peak velocity of the mitral flow during the early ventricular filling, E_mean: mean velocity of the mitral flow during the early ventricular filling, ET: Ejection time, LSMean: Least Square Mean, SD: Standard deviation, SE: Standard error, VTI: Velocity time integral.
* Significantly different from corresponding value obtained from the right side, p < 0.05.

ISSN: 1746-6148