Table 3.
Locations of all 41 bone metastases and number of detected lesions in each modality in comparison to the reference standard (in brackets). Most metastases affected the vertebrae and the pelvic bones. Mainly osteolytic metastases were missed/misinterpreted by CT and bone scan. Note that in CT arms were positioned upward and in PET/MRI besides the body. Only parts of the limbs that are pictured in the FOV of all modalities were evaluated
| PET/MRI and MRI | CT | Bone scan | Reference standard | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Lytic | Sclerotic | Lytic | Sclerotic | Lytic | Sclerotic | Histology | CT | MRI | |
| Vertebrae | 9(9) | 8(8) | 4(9) | 8(8) | 1(9) | 4(8) | 1 | 12 | 4 |
| Pelvic bones | 6(6) | 4(4) | 2(6) | 4(4) | 3(6) | 3(4) | 5 | 3 | 2 |
| Ribs | 4(4) | 1(1) | 1(4) | 0(1) | 1(4) | 0(1) | 1 | 3 | 1 |
| Limbs | 4(4) | 5(5) | 1(4) | 3(5) | 2(4) | 1(5) | 1 | 5 | 3 |
| Total | 23(23) | 18(18) | 8(23) | 15(18) | 7(23) | 8(18) | 8 | 23 | 10 |