Comparison of Plasma Catecholamine Levels with BAT Findings on PET/CT
| Level | BAT+ | BAT− | n | P |
|---|---|---|---|---|
| 18F-F-DA | ||||
| Elevated norepinephrine (>498 pg/mL) | 5 | 34 | ||
| Normal norepinephrine | 6 | 13 | ||
| 58 | 0.18* | |||
| Plasma norepinephrine (pg/mL) | ||||
| Mean ± SD | 3,591 ± 9,277 | 1,878 ± 4,111 | 0.38† | |
| Median | 549 | 885 | ||
| Elevated epinephrine (>83 pg/mL) | 1 | 5 | ||
| Normal epinephrine | 9 | 30 | ||
| 45 | 1.00* | |||
| Plasma epinephrine (pg/mL) | ||||
| Mean ± SD | 35 ± 28 | 48.9 ± 103 | 0.66† | |
| Median | 30 | 18 | ||
| 18F-FDG | ||||
| Elevated norepinephrine (>498 pg/mL) | 6 | 15 | ||
| Normal norepinephrine | 2 | 17 | ||
| 40 | 0.30* | |||
| Norepinephrine (pg/mL) | ||||
| Mean ± SD | 24,734 ± 48,326 | 1,391 ± 3,088 | 0.01† | |
| Median | 2,301 | 419 | ||
| Elevated epinephrine (>83 pg/mL) | 1 | 5 | ||
| Normal epinephrine | 6 | 23 | ||
| 35 | 1.00* | |||
| Plasma epinephrine (pg/mL) | ||||
| Mean ± SD | 34 ± 42 | 133 ± 481 | 0.39† | |
| Median | 17.5 | 22 |