Table 1.
Area under the curve ratio between manual blood sampling and image-derived carotid blood activity
| Variables | Subjects |
Mean | SD | COV | |||
|---|---|---|---|---|---|---|---|
| S1 AUCr |
S2 AUCr |
S3 AUCr |
S4 AUCr |
||||
| Unfitted IF | |||||||
| Plasma/IDIF | 0.981 | 0.923 | 1.119 | 1.051 | 1.018 | 0.085 | 8.342 |
| MFB/IDIF | 0.944 | 0.968 | 1.053 | 0.984 | 0.987 | 0.047 | 4.752 |
| Fitted IF | |||||||
| Plasma/IDIF | 1.068 | 0.978 | 0.934 | 1.049 | 1.008 | 0.062 | 6.189 |
| MFB/IDIF | 1.031 | 1.009 | 0.907 | 1.006 | 0.988 | 0.055 | 5.599 |
Abbreviations: AUCr, area under the curve ratio; COV, coefficient of variation; IF, input function; IDIF, image-derived IF scaled to three plasma last samples; MFB, measured full blood activity; plasma, measured plasma activity; S1 to S4, participants; SD, standard deviation.