Table 3b.
Total pulmonary nodules detection by size and modality
Number of pulmonary nodules detected on CT only, PET-CT (i.e. FDG-avid nodules on PET/CT), PROPELLER MRI only and PET/MR. Column MRI retro represents nodules that were detected with a retrospective approach (i.e. looking for nodules on MRI seen on CT). Two experienced reviewers assessed all imaging studies in consensus through a prospective approach with an interval of at least two months between evaluations of different imaging modalities to avoid recall bias.
| CT of PET/CT | PET of PET/CT | Combined PET/CT | MRI of PET/MR | PET of PET/MR | Combined PET/MR | MRI retro | |
|---|---|---|---|---|---|---|---|
| Nodule size (mm) | |||||||
| > 10 | 56 | 52 | 56 | 56 | 54 | 56 | 56 |
| 5–9 | 48 | 9 | 48 | 42 | 18 | 42 | 45 |
| 3–4 | 32 | 0 | 32 | 8 | 0 | 8 | 18 |
| 1–2 | 12 | 0 | 12 | 1 | 0 | 1 | 2 |
| Nodule number | |||||||
| Total | 148 | 61 | 148 | 107 | 72 | 107 | 121 |
| ≥ 5 mm | 104 | 61 | 104 | 98 | 72 | 98 | 101 |
| < 5 mm | 44 | 0 | 44 | 9 | 0 | 9 | 20 |
| % all nodules | 100 | 41 | 100 | 72 | 49 | 72 | 81 |
| % nodules ≥ 5 mm | 100 | 59 | 100 | 94 | 69 | 94 | 97 |
| % nodules <5mm | 100 | 0 | 100 | 20 | 0 | 20 | 45 |