Table 3 Results for automatically calculated peak velocities and atrial contraction. Manual and automatic measurement results of automatically calculated peak emptying velocity, peak filling velocity, and atrial contraction as mean ± SD in the left and right side of the heart. Comparison of automatic tracking vs manual measurements as correlation R value and bias ± SD. The validation was performed on n = 20 subjects. The atrial contraction is given in % of the atrioventricular plane displacement (AVPD) in end systole
Measure | Manual | Automatic | R | Bias ± SD |
|---|---|---|---|---|
Left peak emptying velocity [cm/s] | −57 ± 12 | −49 ± 8 | 0.63 | −7.6 ± 9.0 |
Right peak emptying velocity [cm/s] | −77 ± 18 | −77 ± 12 | 0.74 | −0.4 ± 12.0 |
Left peak filling velocity [cm/s] | 72 ± 29 | 49 ± 15 | 0.74 | 23.0 ± 20.4 |
Right peak filling velocity [cm/s] | 79 ± 28 | 68 ± 23 | 0.85 | 10.8 ± 14.8 |
Left atrial contraction [%] | 31 ± 11 | 32 ± 7 | 0.49 | −1.5 ± 9.9 |
Right atrial contraction [%] | 38 ± 9 | 35 ± 7 | 0.39 | 3.3 ± 9.0 |