Table 2.
CTDIvol in mGy required to comply with the QIBA profile,13 meaning that the expected SD is at most 20 HU. This should allow differentiating healthy from emphysematous lung tissue.
| No NiTANN | NiTANN | |
|---|---|---|
| FBP | 1.32 | 0.48 |
| ADMIRE 1 | 1.07 | 0.39 |
| ADMIRE 3 | 0.66 | 0.19 |
| ADMIRE 5 | 0.25 | ≤0.07 |
ADMIRE, ADvanced Model Iterative REconstruction; CTDIvol, Computer Tomography Dose Index (volumetric); FBP, filtered backprojection; HU, Hounsfield unit; NiTANN, non-iterative technique artificial neural network; QIBA, Quantitative Imaging Biomarkers Alliance; SD, standard deviation.