Table 2.
Imaging characteristics of activated BAT on 18F-FDG PET/CT
| Characteristic | n | Measured value |
|---|---|---|
| Anatomical distribution | ||
| Posterior neck (SUVmax) | 21 | 3.5 ± 0.3 (1.6-6.6) |
| Supraclavicular (SUVmax) | 29 | 5.0 ± 0.5 (1.8-9.5) |
| Paravertebral (SUVmax) | 17 | 4.4 ± 0.5 (2.0-8.1) |
| Suprarenal (SUVmax) | 3 | 5.8 ± 0.7 (4.8-7.2) |
| BAT total metabolic volume (cm3) | 32.1 ± 7.5 (0.1-143.5) | |
| BAT total metabolic activity | 95.9 ± 24.1 (0.2-467.5) | |
| 1 distribution region | 8 | 4.7 ± 4.2 (0.2-34.4) |
| 2 distribution regions | 7 | 46.9 ± 20.0 (0.2-137.2) |
| 3 distribution regions | 12 | 131.0 ± 35.9 (13.2-423.7) |
| 4 distribution regions | 3 | 312.5 ± 114.4 (89.3-467.5) |
Data are means ± standard error and (range).
SUVmax : maximum standardized uptake value