| 1 | Location Lung | Left/Right | Lung lobe |
| 2 | Location segment | Lung segment | |
| 3 | Slice number | CT slice number | Central in nodule |
| 4 | Location | Peripheral | Distance 2/3 from hilum |
| | Central | Within 1/3 of long hilum |
| 5 | Nodule edge | Smooth | |
| | Non-smooth | Irregular |
| | | Lobulated |
| | | Spiculated |
| 6 | Nodule shape | Spherical | |
| | Non-spherical | Irregular |
| | | Triangular/Flat/polygonal |
| 7 | Nodule density | Solid | |
| | Mixed/Sub-solid | |
| | Non-solid/Ground-glass | |
| 8 | Nodule density | HU (mean + range) | |
| 9 | Nodule volume (only in second read) | | |
| 10 | Nodule diameter | 3 directions + min/max | |
| 11 | Calcified nodule | No | |
| | Yes | Central |
| | | Total |
| | | Peripheral |
| | | Popcorn |
| | | Other |
| 12 | Attachment | Vessel | |
| | Fissure | |
| | Pleural | Attached |
| | | Pleural-based |