Table 2.
Number of patients and BMs scanned by each of the MR scanner model and acquisition parameters configurations.
| Scanner model and field strength | Acquisition orientation | Voxel size (mm3) | # Patients | # BMs (% progression) |
|---|---|---|---|---|
| Siemens Magnetom Vision (1.5 T) | Sagittal | 1 × 1 × 1.5 | 35 | 39 (28.2%) |
| Siemens Avanto (1.5 T) | Sagittal | 0.5 × 0.5 × 1 | 30 | 37 (13.5%) |
| Axial | 0.5 × 0.5 × 2 | 5 | 8 (0.0%) | |
| Siemens Magnetom Expert (1.0 T) | Sagittal | 1 × 1 × 1.5 | 21 | 29 (31.0%) |
| Siemens Sonata (1.5 T) | Sagittal | 1 × 1 × 1.5 | 5 | 5 (40.0%) |
| Axial | 1 × 1 × 1.5 | 1 | 1 (0.0%) | |
| Axial | 1 × 1 × 2 | 1 | 3 (0.0%) | |
| General Electric Signa HDxt (1.5 T) | Sagittal | 1 × 1 × 1.5 | 1 | 1 (0.0%) |
Chi-squared test for progression yielded p = 0.226 across all scanner models and p = 0.069 across further investigated Vision, Avanto, and Expert scanners.