Table 4.
Intraobserver and interobserver measurement agreement data from 12 randomly selected echocardiographic studies
| Echocardiographic measurements | Intraobserver measurement agreement ICC (95% CI) | Interobserver measurement agreement ICC (95% CI) |
|---|---|---|
| AoD | 0.96 (0.90, 0.99) | 0.94 (0.84, 0.98) |
| Ao | 0.96 (0.91, 0.99) | 0.90 (0.75, 0.97) |
| LVIDd2DE, Lx | 0.97 (0.92, 0.99) | 0.98 (0.94, 0.99) |
| LVIDd2DE, Sx | 0.99 (0.97, 1.0) | 0.97 (0.94, 0.99) |
| LVIDdMM, Sx | 0.96 (0.91, 0.99) | 0.97 (0.92, 0.99) |
| LVIDd2DE, Lx/AoD | 0.82 (0.60, 0.94) | 0.80 (0.58, 0.93) |
| LVAd2DE, Sx | 0.98 (0.89, 1.0) | 0.98 (0.94, 0.99) |
| LVVd2DE, Lx | 0.98 (0.96, 0.99) | 0.96 (0.66, 0.99) |
| LVIDs2DE, Lx | 0.98 (0.96, 0.99) | 0.94 (0.81, 0.98) |
| LVIDs2DE, Sx | 0.99 (0.98, 1.0) | 0.98 (0.91, 0.99) |
| LVIDsMM, Sx | 0.99 (0.98, 1.0) | 0.96 (0.90, 0.99) |
| LVAs2DE, Sx | 0.97 (0.77, 0.99) | 0.97 (0.91, 0.99) |
| LVVs2DE, Lx | 0.98 (0.96, 0.99) | 0.99 (0.97, 1.0) |
| FS2DE, Lx | 0.75 (0.48, 0.91) | 0.50 (0.14, 0.80) |
| FS2DE, Sx | 0.92 (0.81, 0.97) | 0.82 (0.56, 0.94) |
| FSMM, Sx | 0.88 (0.73, 0.96) | 0.78 (0.54, 0.92) |
| FAC2DE, Sx | 0.90 (0.58, 0.97) | 0.87 (0.70, 0.96) |
| EF2DE, Lx | 0.86 (0.68, 0.95) | 0.78 (0.14, 0.94) |
| LAD2DE, Lx | 0.95 (0.88, 0.98) | 0.96 (0.90, 0.99) |
| LAD/AoD2DE, Lx | 0.77 (0.53, 0.92) | 0.70 (0.41, 0.90) |
| LA2DE, Sx | 0.96 (0.91, 0.98) | 0.88 (0.73, 0.96) |
| LA/Ao2DE, Sx | 0.69 (0.39, 0.89) | 0.39 (0.07, 0.73) |
| LAV2DE, Lx | 0.98 (0.96, 0.99) | 0.95 (0.85, 0.98) |
Note: Bold values represent less than substantial agreement (ICC < 0.61).
Abbreviations: ICC, intraclass correlation coefficient. See Table 1 for the remainder of the abbreviations key.