Patient Characteristics
| Characteristic | 18F-FDG PET (28) | 18F-fluoromethylcholine PET (29) |
| Type of cancer | NSCLC | Metastatic prostate cancer (4 castration-resistant cases) |
| No. of patients | 11 | 12 |
| No. of lesions | 70 | 67 |
| Mean age ± SD (y) | 60 ± 7 | 64 ± 8 |
| Sex | 7 male, 4 female | 12 male |
| Lesion location | 16 intrapulmonary, 54 extrapulmonary | 44 bone metastases, 23 lymph node metastases |
| Median volume (mL) | ||
| Non-PSF | 3.94 (IQR, 10.85) | 5.76 (IQR, 8.64) |
| PSF | 3.90 (IQR, 20.10) | 5.28 (IQR, 7.92) |
IQR = interquartile range.
Data are median volumes as determined with background-adapted 50% peak, being the most accurate VOI method as determined in phantom experiment, on baseline.