Table 5.
Intraobserver and interobserver agreement (n = 20)
| Intraclass correlation coefficient (ICC) | Bias | 95% limits of agreement | |
|---|---|---|---|
| Echocardiography R1 versus R2 | |||
| Mitral inflow velocities | |||
| E (cm/s) | 0.93 | -1.66 | -11.70 to 8.36 |
| DT (ms) | 0.84 | 9.84 | -38.67 to 58.36 |
| A (cm/s) | 0.95 | -1.12 | -14.84 to 12.59 |
| Tissue Doppler velocities | |||
| Septal | |||
| e’ (cm/s) | 0.85 | 0.42 | -1.84 to 2.68 |
| Lateral | |||
| e’ (cm/s) | 0.89 | -0.37 | -1.76 to 2.49 |
| Echocardiography R1 versus R1 | |||
| Mitral inflow velocities | |||
| E (cm/s) | 0.95 | -1.39 | -9.22 to 6.44 |
| DT (ms) | 0.72 | 6.77 | -62.40 to 75.96 |
| A (cm/s) | 0.96 | -0.22 | -12.85 to 12.39 |
| Tissue Doppler velocities | |||
| Septal | |||
| e’ (cm/s) | 0.89 | 0.28 | -1.78 to 2.35 |
| Lateral | |||
| e’ (cm/s) | 0.92 | -0.59 | -2.06 to 0.86 |
| CMR R1 versus R2 | |||
| Volume-curves | |||
| E (mL/s) | 0.84 | 2.54 | -79.77 to 84.86 |
| DT (ms) | 0.77 | -21.52 | -81.75 to 38.70 |
| A (mL/s) | 0.82 | 22.89 | -51.20 to 97.00 |
| Longitudinal relaxation rate | |||
| Septal | |||
| E’ (mm/s) | 0.75 | -4.90 | -32.59 to 22.63 |
| Lateral | |||
| E’ (mm/s) | 0.89 | -5.48 | -25.24 to 14.27 |
| CMR R1 versus R1 | |||
| Volume-curves | |||
| E (mL/s) | 0.97 | -1.36 | -33.73 to 31.00 |
| DT (ms) | 0.84 | 12.93 | -28.46 to 28.46 |
| A (mL/s) | 0.96 | -15.51 | -64.82 to 33.79 |
| Longitudinal relaxation rate | |||
| Septal | |||
| E’ (mm/s) | 0.85 | -2.93 | -23.91 to 18.03 |
| Lateral | |||
| E’ (mm/s) | 0.94 | -4.11 | -18.93 to 10.70 |
Note: R1: reader 1 and R2: reader 2. E: early peak filling rate; DT: deceleration time; A: atrial peak filling rate; e’: early diastolic myocardial relaxation velocity; E’: early longitudinal relaxation rate.