Localization of Metastatic Foci and Number of Foci First Detected by 18F-FDG PET/CT
| Study patients (n = 115) | Controls (n = 230) | |||||
| Metastatic foci | Total number | % | First detected by 18F-FDG PET | Total number | % | P |
| Patients with foci identified | 78 | 67.8 | 82 | 35.7 | <0.01 | |
| Total number of foci | 124 | 113 | ||||
| Endocarditis | 21 | 18.3 | 0 | 19 | 8.3 | 0.01 |
| Endovascular | 20 | 17.4 | 12 | 9 | 3.9 | <0.01 |
| Lung | 12 | 10.4 | 6 | 8 | 3.5 | 0.01 |
| Liver | 1 | 0.9 | 0 | 1 | 0.4 | 1.0 |
| Spleen | 1 | 0.9 | 1 | 0 | 0 | 1.0 |
| Arthritis | 10 | 8.7 | 3 | 28 | 12.2 | 0.37 |
| Spondylodiskitis | 11 | 9.6 | 8 | 10 | 4.3 | 0.09 |
| Osteomyelitis | 6 | 5.2 | 1 | 3 | 1.3 | 0.06 |
| Psoas abscess | 3 | 2.6 | 2 | 1 | 0.4 | 0.11 |
| Soft tissue | 11 | 9.6 | 4 | 12 | 5.2 | 0.18 |
| Central nervous system | 11 | 9.6 | 3* | 7 | 3.0 | 0.02 |
| Eye | 3 | 2.6 | 0 | 0* | 0 | 0.04 |
| Joint prosthesis | 9 | 7.8 | 3 | 5 | 2.2 | 0.02 |
| Intraabdominal | 4 | 3.5 | 1 | 6 | 2.6 | 0.74 |
| Kidney | 1 | 0.9 | 0 | 4 | 1.7 | 0.67 |
↵* Epidural extension of 18F-FDG uptake in 3 patients with spondylodiskitis, confirmed by MRI.
In 30 study patients and 22 controls, more than 1 metastatic localization was identified.