Table 3. Comparison of the perfusion parameters between different parts of the pancreas.
| Parameters | Parts | |||||
|---|---|---|---|---|---|---|
| Head | Neck | Body | Tail | F value | P value | |
| BF (mL/100 g/min) | ||||||
| Group A | 89.697±18.795 | 99.159±15.866 | 94.848±19.920 | 96.246±16.814 | 0.976 | 0.409 |
| Group B | 94.149±14.905 | 99.720±21.366 | 94.067±14.042 | 99.490±11.042 | 0.808 | 0.493 |
| BV (mL/100 g) | ||||||
| Group A | 15.256±2.925 | 13.940±2.691 | 16.142±4.006 | 16.446±3.709 | 2.214 | 0.093 |
| Group B | 16.953±3.602 | 17.173±3.918 | 18.401±2.513 | 17.374±3.781 | 0.671 | 0.573 |
| PS (mL/100 g/min) | ||||||
| Group A | 34.205±9.612 | 34.898±11.592 | 28.861±10.448 | 27.823±8.228 | 2.599 | 0.058 |
| Group B | 24.377±8.413 | 25.794±8.149 | 22.158±6.017 | 21.509±7.768 | 1.345 | 0.266 |
| MTT (s) | ||||||
| Group A | 10.617±3.132 | 9.064±2.497 | 10.552±2.527 | 10.446±3.381 | 1.295 | 0.282 |
| Group B | 11.047±1.852 | 11.133±2.327 | 10.945±2.627 | 11.065±2.524 | 0.219 | 0.883 |
| TTP (s) | ||||||
| Group A | 17.116±3.827 | 17.290±3.751 | 16.337±2.942 | 16.450±3.539 | 0.362 | 0.781 |
| Group B | 17.818±2.696 | 17.757±3.219 | 17.337±2.173 | 18.046±2.760 | 0.234 | 0.873 |
| Tmax (s) | ||||||
| Group A | 5.304±1.429 | 4.870±1.348 | 5.191±1.183 | 5.236±1.502 | 0.394 | 0.758 |
| Group B | 5.684±0.721 | 5.241±0.999 | 5.551±0.955 | 5.709±1.503 | 0.791 | 0.503 |
| IRF T0 (s) | ||||||
| Group A | 0.314±0.395 | 0.303±0.438 | 0.267±0.505 | 0.335±0.344 | 1.395 | 0.251 |
| Group B | 0.591±0.827 | 0.271±0.365 | 0.220±0.250 | 0.350±0.363 | 0.457 | 0.713 |
| MSI | ||||||
| Group A | 5.271±1.147 | 5.388±0.966 | 5.871±1.504 | 6.340±1.215 | 3.205 | 0.028* |
| Group B | 4.955±1.234 | 5.170±1.414 | 5.243±1.500 | 5.440±1.555 | 0.392 | 0.759 |
| PEI | ||||||
| Group A | 0.307±0.050 | 0.304±0.088 | 0.305±0.093 | 0.304±0.057 | 0.011 | 0.412 |
| Group B | 0.344±0.060 | 0.361±0.051 | 0.342±0.048 | 0.350±0.073 | 0.412 | 0.745 |
Data are expressed as numbers (mean ± standard deviation) compared between different parts of the pancreas. The P value was calculated with the F test. Group A underwent continuous perfusion scanning; group B underwent intermittent perfusion scanning. *, a P value <0.05. BF, blood flow; BV, blood volume; PS, permeability surface; MTT, mean transit time; TTP, time to peak; Tmax, arrival pulse residual function peak transit time; IRF T0, the delay time of arrival of contrast agent; MSI, mean slope of increase; PEI, positive enhanced integral.