Table 1A.

Comparison of Ventricular Volume Calculations Using VOCAL™ With the Subfeature Contour Finder: Trace at Rotations of 15° and 30°

	15°	30°	P
Overall	3.6 (3.0 – 4.2)	7.1 (5.8 – 8.6)	<0.001*
LVS	4.8 (3.6 – 6.3)	9.1 (6.2 – 12.5)	<0.001*
LVD	2.5 (1.6 – 3.5)	6.5 (3.9 – 9.7)	<0.05*
RVS	4.0 (2.5 – 5.7)	7.5 (4.7 – 10.8)	<0.05*
RVD	3.3 (2.2 – 4.8)	5.8 (3.4 – 8.8)	ns*

Values of agreement are expressed as mean percent CV (95% confidence interval [CI])

RVS – right ventricle in systole

RVD – right ventricle in diastole

LVS – left ventricle in systole

LVD – left ventricle in diastole

^*paired t-test