Table 5. The peristalsis motion of the pancreatic head and duodenum, as measured from each BH T1 phase (mean ± standard deviation in cm).
| 3DMRI phases | T2 haste | T1 Pre-contrast | T1 Arterial | T1 Venous | T1 Portal venous | T1 Post-contrast | |
|---|---|---|---|---|---|---|---|
| Average inter-sequence delay (min) | 34 | 37.6 | 38.1 | 38.7 | 44.8 | ||
| Pancreatic Head (cm) | SI | 0.55 ± 0.3 | 0.8 ± 0.4 | 0.45 ± 0.3 | 0.5 ± 0.3 | 0.8 ± 0.4 | |
| AP | 0.3 ± 0.2 | 0.4 ± 0.2 | 0.3 ± 0.1 | 0.2 ± 0.1 | 0.4 ± 0.2 | ||
| LR | 0.3 ± 0.1 | 0.4 ± 0.2 | 0.3 ± 0.1 | 0.3 ± 0.1 | 0.4 ± 0.1 | ||
| Duodenum (cm) | SI | 1 ± 0.5 | 0.8 ± 0.4 | 0.9 ± 0.5 | 0.75± 0.5 | 1.2 ± 0.5 | |
| AP | 0.6 ± 0.1 | 0.45 ± 0.1 | 0.6 ± 0.1 | 0.45± 0.1 | 0.3 ± 0.1 | ||
| LR | 0.7 ± 0.2 | 0.6 ± 0.2 | 0.7 ± 0.2 | 0.6 ± 0.2 | 0.6 ± 0.2 | ||
| Duodenum relative to Pancreatic Head (cm) | SI | 0.4 | 0.13 | 0.4 | 0.14 | 0.2 | 0.1 |
| AP | 0.33 | 0.1 | 0.31 | 0.11 | 0.7 | 0.4 | |
| LR | 1.85 | 1.7 | 1.3 | 1.6 | 1.5 | 1.3 |