| Mandatory |
| No injection of contrast medium |
| Inspiratory apnoea slices |
| Axial contiguous or non-reconstructed slices separated by ≤2 cm |
| Slice thickness ≤2 mm |
| Reconstruction field focused on lungs |
| Image acquisition complying with European irradiation norms |
| Archiving of image acquisition of millimetric slices on CD/DVD for further reading |
| Optional |
| Frontal reconstruction in minimal intensity projection, 5–8 mm thick# |
| Images in the prone position, if opacities linked to gravito-dependance hamper the analysis when in the supine position |
| Expiration slices to exclude lobular air trapping¶ |
| Coronal and sagittal reconstructions if volumetric acquisitions are available |
#: to differentiate bronchiolectasis from honeycombing; ¶: more frequent in patients with hypersensitivity pneumonitis.