Table 1. Intra-rater and inter-rater reliability of the measure of caudal vena cava (CVC), abdominal aorta (Ao) and velocity time integral (VTI) using Intra-class Correlation Coefficient (ICC) reliability test and coefficient of variation (CV) for intra-rater variability.
| CV (%) logarithmic method | Single measures ICC (Absolute agreement) |
95% CI | |
|---|---|---|---|
| CVC (Intra-rater) | 2.60 | 0.989 | 0.959–0.997 |
| CVC (Inter-rater) | – | 0.930 | 0.817–0.980 |
| Ao (Intra-rater) | 5.92 | 0.943 | 0.797–0.985 |
| Ao (Inter-rater) | – | 0.791 | 0.529–0.937 |
| VTI (Intra-rater) | 3.52 | 0.989 | 0.958–0.997 |
| VTI (Inter-rater) | – | 0.979 | 0.959–0.997 |