Table 5.
Interobserver agreement in flow parameters.
| Parameter | ICC values in pulmonary artery trunk | ICC values in right main pulmonary artery | ICC values in left main pulmonary artery |
|---|---|---|---|
| Flow rate (ml/min) | 0.968 [95 % CI, 0.948–0.980] | 0.950 [95 % CI, 0.927–0.966] | 0.943 [95 % CI, 0.916–0.962] |
| Forward (L/min) | 0.978 [95 % CI, 0.959–0.987] | 0.946 [95 % CI, 0.920–0.963] | 0.945 [95 % CI, 0.919–0.963] |
| Backward (L/min) | 0.921 [95 % CI, 0.884–0.946] | 0.934 [95 % CI, 0.900–0.956] | 0.808 [95 % CI, 0.726–0.867] |
| Output (ml) | 0.962 [95 % CI, 0.940–0.975] | 0.957 [95 % CI, 0.937–0.971] | 0.949 [95 % CI, 0.925–0.965] |
| Regurgitation (ml) | 0.874 [95 % CI, 0.818–0.914] | 0.876 [95 % CI, 0.821–0.915] | 0.849 [95 % CI, 0.782–0.896] |
| Regurgitation (%) | 0.838 [95 % CI, 0.767–0.888] | 0.864 [95 % CI, 0.803–0.907] | 0.833 [95 % CI, 0.760–0.885] |
| WSS (Pa) | 0.959 [95 % CI, 0.936–0.973] | 0.977 [95 % CI, 0.966–0.985] | 0.899 [95 % CI, 0.851–0.931] |
| Area (cm2) | 0.949 [95 % CI, 0.886–0.973] | 0.947 [95 % CI, 0.914–0.966] | 0.861 [95 % CI, 0.787–0.909] |
| Kinetic energy (mW) | 0.958 [95 % CI, 0.939–0.972] | 0.983 [95 % CI, 0.975–0.989] | 0.964 [95 % CI, 0.947–0.976] |
| Ave through velocity (m/s) | 0.963 [95 % CI, 0.945–0.975]) | 0.978 [95 % CI, 0.968–0.985] | 0.927 [95 % CI, 0.891–0.951] |
ICC, intraclass correlation coefficient; CI, confidence interval; WSS, wall shear stress; Ave, average.