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