Table 4.

Inter- and intra-observer variability of the LVEDV and the four LV flow components as a percentage of EDV

	I1 A1	P-value vs I1 A2	I1 A2	P-value vs I2	I2	P-value vs I1 A1
EDV	146 ± 25	NS	151 ± 29	0.010	144 ± 24	NS
Direct flow	30 ± 10%	NS	30 ± 9%	NS	33 ± 11%	NS
Retained inflow	18 ± 4%	NS	18 ± 4%	NS	18 ± 4%	NS
Delayed ejection flow	17 ± 4%	NS	16 ± 4%	NS	16 ± 4%	NS
Residual volume	36 ± 6%	NS	36 ± 6%	NS	33 ± 6%	NS

Mean ± SD for all 9 subjects. P-values < 0.01 are considered statistically significant. EDV, End diastolic volume; NS, Not Significant; I1 A1, Investigator 1 Analysis 1; I1 A2, Investigator 1 Analysis 2; I2; Investigator 2.