Determinants of Mean 18F-NaF Blood Activity in Vena Cava Superior
| Determinant | Regression coefficient | β | Adjusted R2 | P |
| bloodNaFmean (kBq/mL) | 0.23 | <0.001 | ||
| Intercept (kBq/mL) | 0.84 (0.42–1.49) | 0.001 | ||
| Injected dose (100 MBq) | 0.35 (0.03–0.55) | 0.32 | 0.011 | |
| PET/CT system | ||||
| Discovery STE | −0.14 (−0.36 to 0.13) | −0.14 | 0.310 | |
| Discovery VCT | −0.39 (−0.61 to −0.16) | −0.37 | <0.001 | |
| Discovery RX | −0.01 (−0.23 to 0.19) | −0.01 | 0.948 |
β = standardized regression coefficient.
Model eliminated renal function and circulating time. 95% confidence intervals are presented in parentheses.