Cardiovascular Ultrasound

Table 2 Reproducibility of visual and three quantitative methods (mean percentage difference)

From: Quantitative approach using multiple single parameters versus visual assessment in dobutamine stress echocardiography

	Visual	PW-DMI	CC-DMI			STI
	WMSI	velocities	velocities	strain	strain rate	velocities	strain	strain rate
*Interobserver*	0.035	0.059	0.038	0.036	0.007	0.031	0.077	0.009
*Intraobserver*	0.028	0.091	0.004	0.116	0.016	0.037	0.109	0.016

PW-DMI = pulsed wave Doppler myocardial imaging; CC-DMI = color coded Doppler myocardial imaging; STI = speckle tracking imaging; WMSI = wall motion score index.

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ISSN: 1476-7120

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