Cardiovascular Ultrasound

Table 4 Reproducibility analyses

From: Tissue Doppler derived biphasic velocities during the pre and post-ejection phases: patterns, concordance and hemodynamic significance in health and disease

	Inter-observer variability			Intra-observer variability
	ICC	p-value	Difference	ICC	p-value	Difference
PREp, cm/s	0.94	< 0.001	0.03 ± 0.93	0.97	< 0.001	0.11 ± 0.57
PREn, cm/s	0.84	< 0.001	-0.72 ± 0.67	0.93	< 0.001	-0.22 ± 0.45
POEn, cm/s	0.91	< 0.001	-0.53 ± 0.38	0.93	< 0.001	-0.17 ± 0.31
POEp, cm/s	0.88	< 0.001	0.01 ± 0.38	0.89	< 0.001	0.02 ± 0.34

PREp positive pre-ejection, PREn negative pre-ejection, POEn negative post-ejection, POEp positive post-ejection

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