Table 1. Contrast Ratios of [13N]NH3 or [18F]FPTP at Each Time Point after 37 MBq Injection in Normal Rat (Myocardium-to-Liver and Myocardium-to-Lung).
| myocardium-to-liver | ||||||
|---|---|---|---|---|---|---|
| 1 min | 2 min | 5 min | 10 min | 15 min | 30 min | |
| [18F]FPTP | 3.21 ± 0.81 | 2.10 ± 0.13 | 2.08 ± 0.17 | 2.58 ± 0.23 | 3.17 ± 0.32 | 5.73 ± 0.75 |
| [13N]NH3 | 3.01 ± 2.38 | 1.37 ± 0.69 | 0.84 ± 0.15 | 0.76 ± 0.10 | 0.74 ± 0.09 | 0.75 ± 0.09 |
| p-value | nsa | ns | b | b | c | c |
| myocardium-to-lung | ||||||
|---|---|---|---|---|---|---|
| 1 min | 2 min | 5 min | 10 min | 15 min | 30 min | |
| [18F]FPTP | 2.17 ± 1.25 | 4.51 ± 0.28 | 5.09 ± 0.34 | 5.77 ± 0.44 | 5.73 ± 0.75 | 5.95 ± 1.01 |
| [13N]NH3 | 1.25 ± 0.38 | 1.44 ± 0.30 | 1.80 ± 0.17 | 2.31 ± 0.12 | 2.59 ± 0.25 | 2.87 ± 0.41 |
| p-value | ns | b | b | b | b | b |
a
ns: not significant.
b
*p < 0.05.
c
**p < 0.01.