Table 1.
Comparison of gastric volumes measured by manual vs. semiautomated techniques
| Measurements | Manual | Semiautomated | CCC (95% CI) | Mean (95% CI) Difference (manual − semiautomated volume) |
|---|---|---|---|---|
| Food | ||||
| Postprandial 5 | 352 ± 4 | 346 ± 4 | 0.70 (0.52, 0.81) | 6.1 (0.1, 12.1) |
| Postprandial 10 | 343 ± 5 | 336 ± 5 | 0.79 (0.66–0.87) | 7.1 (0.7, 13.5) |
| Postprandial 20 | 328 ± 6 | 324 ± 5 | 0.85 (0.75–0.91) | 4.4 (−1.7, 10.4) |
| Postprandial 30 | 313 ± 7 | 309 ± 6 | 0.88 (0.80–0.93) | 5.4 (−1.3, 12.2) |
| Air | ||||
| Postprandial 5 | 88 ± 6 | 84 ± 6 | 0.89 (0.82, 0.94) | 4.8 (−0.8, 10.4) |
| Postprandial 10 | 86 ± 6 | 83 ± 7 | 0.91 (0.84, 0.94) | 2.4 (−3.1, 8.0) |
| Postprandial 20 | 85 ± 6 | 79 ± 6 | 0.89 (0.81, 0.93) | 5.9 (0.5, 11.3) |
| Postprandial 30 | 81 ± 6 | 78 ± 6 | 0.92 (0.86, 0.95) | 4.7 (0.2, 9.3) |
CCC, concordance correlaton coefficient; CI, confidence interval.
The nos. 5, 10, and 30 reflect imaging time, in min, relative to meal ingestion.