Table 4.
Inter- and intra-observer reproducibility of liver stiffness (LS) and spleen stiffness (SS) measurements for each platform.
| System # | ICC | CV (%) | CR (%) | Mean Bias (%) | BALA | |
|---|---|---|---|---|---|---|
| Inter-observer | ||||||
| LS | 1 | 0.992 | 5.4 | 12.4 | 0.4 | [−12.0, 12.8] |
| 2 | 0.979 | 11.2 | 15.9 | 1.1 | [−14.8, 16.9] | |
| SS | 1 | 0.980 | 10.0 | 14.8 | 5.6 | [−9.1, 20.4] |
| 2 | 0.989 | 15.7 | 10.2 | 4.2 | [−5.9, 14.4] | |
| Intra-observer | ||||||
| LS | 1 | 0.999 | 1.2 | 2.9 | −0.1 | [−3.0, 2.7] |
| 2 | 0.999 | 1.5 | 4.2 | −0.8 | [−5.0, 3.3] | |
| SS | 1 | 0.998 | 2.1 | 6.6 | −2.0 | [−8.6, 4.5] |
| 2 | 0.998 | 1.9 | 3.5 | −1.2 | [−4.7, 2.2] | |
System #1: 3.0T GE Discovery MR750, system #2: 1.5T Siemens MAGNETOM Aera
CV: coefficient of variation (%)
CR: coefficient of reproducibility (%)
BALA: Bland-Altman limits of agreement (%)