Table 2 ANOVA results for variability in seroma shift determination introduced as a result of multiple US scan acquisitions (scanning variability) and multiple operators contouring on a single US scan (contouring variability)
Scanning variability | Operator variability | |
|---|---|---|
Standard error in measurement (mm) | 0.6 | 3.2 |
95% confidence interval (mm) | 1.1 | 6.2 |
P-value | 0.42 | 0.19 |