Table 2.
Intra‐ and interobserver variation in wall thickness measurements
| Tissue | Intra‐Obs CV (%) | Interobs | Reference Range (mm) (95% Predictive Interval) | ||
|---|---|---|---|---|---|
| Obs A | Obs B | Bias (A–B) | Limits of Agreement (mm) | ||
| Stomach | 8.0 | 9.8 | −0.14a | −1.3 to 0.14 | 1.6–3.6 |
| Duodenum | 14.5 | 14.2 | 0.29a | −0.6 to 1.2 | 1.9–3.2 |
| Jejunum | 12.5 | 9.9 | −0.04 | −0.8 to 0.7 | 1.9–3.1 |
| Colon | 13.5 | 11.8 | −0.15 | −0.7 to 0.4 | 1.3–2.2 |
| Cecum | 12.5 | 21.3 | −0.12 | −0.7 to 0.5 | 0.8–2.7 |
CV, coefficient of variation; Obs, observer.
a
Indicates a statistically significant (P < .05) difference.