Descriptive Statistics of Study Population
| Characteristic | Median | Scan 1 | Scan 2 | P |
| Age (y) | 61 (45–66) | |||
| Patients | 11 | |||
| Tumor type | ||||
| Adenocarcinoma | 8 | |||
| Squamous cell carcinoma | 3 | |||
| Tumor stage | ||||
| IIIb | 4 | |||
| IV | 7 | |||
| Lesions (n) | ||||
| Intrathoracal | 41 | |||
| Extrathoracal | 19 | |||
| Time between scans (d) | 1 (1–2) | |||
| Length (cm) | 173 (162–197) | |||
| Weight (kg) | 75 (57–110) | 74 (57–114) | 0.60 | |
| Glucose (mmol/L) | 5.6 (4.9–6.5) | 5.9 (4.5–7.1) | 0.62 | |
| Uptake time target 60 min | 60 (60–67) | 60 (60–63) | 0.35 | |
| Uptake time target 90 min | 93 (90–97) | 90 (90–95) | 0.15 | |
| Injected activity (MBq) | 252 (194–377) | 238 (192–329) | 0.86 | |
| Residual dose (MBq) | 0.16 (0.07–1.7) | 0.3 (0.02–3.22) | 0.33 |
Data are median, with range in parentheses, P values from Wilcoxon signed-rank test.