Table 1

Comparison of RT-3DE Using the Semi-Automatic Algorithm With Manual Tracing and With Results Obtained by CMRI

Mean Difference ± SDp Value versus 095% CIRegression EquationrSEE
Comparison of the Semi-Automatic Algorithm With Manual Tracing Using RT-3DE
EDV (ml)−1.3 ± 8.6NS−18.5 to 15.9>y = 1.0x − 1.60.998.8
ESV (ml)−0.2 ± 5.4NS−11.0 to 10.6y = 1.0x − 1.30.995.2
EF (%)−0.1 ± 2.7NS−5.5 to 5.3y = 0.98x + 0.50.982.8
Comparison of RT-3DE and Semi-Automatic Border Detection With CMRI
EDV (ml)−13.6 ± 18.90.002−51.4 to 24.2y = 0.93x + 1.30.9817.8
ESV (ml)−12.8 ± 20.50.005−53.8 to 28.8y = 0.90x + 0.40.9818.3
EF (%)0.9 ± 4.4NS−9.7 to 7.9y = 0.91x + 4.70.984.0

CI = confidence interval; CMRI = cardiac magnetic resonance imaging; EDV = end-diastolic volume; ESV = end-systolic volume; EF = ejection fraction; NS = not significant; RT-3DE = real-time three-dimensional echocardiography; SD = standard deviation; SEE = standard error of the estimate.