Comparison of Contrast Values for 2D and 3D PET in Cardiac Human Studies
| Subject no. | Contrast value | ||
|---|---|---|---|
| 2D PET | 3D PET | ||
| 1 | 0.29 | 0.27 | |
| 2 | 0.41 | 0.41 | |
| 3 | 0.38 | 0.36 | |
| 4 | 0.42 | 0.41 | |
| 5 | 0.20 | 0.22 | |
| 6 | 0.30 | 0.35 | |
| 7 | 0.34 | 0.41 | |
| Mean ± SD | 0.33 ± 0.08 | 0.35 ± 0.08 | |
| 8 | 0.39 | 0.39 | |
| 9 | 0.45 | 0.45 | |
| 10 | 0.28 | 0.26 | |
| 11 | 0.46 | 0.56 | |
| 12 | 0.40 | 0.32 | |
| 13 | 0.38 | 0.42 | |
| 14 | 0.40 | 0.34 | |
| Mean ± SD | 0.39 ± 0.06 | 0.39 ± 0.10 | |
Contrast was calculated as (maximum − minimum)/(maximum + minimum). Subjects 1–7 underwent HD 3D PET; subjects 8–14 underwent LD 3D PET. P (by paired t test) = 0.37 for 2D PET vs. HD 3D PET and 0.90 for 2D PET vs. LD 3D PET.