Standard-dose CT with FBP | Low-dose CT with FBP | Low-dose CT with ASIR | Low-dose CT with MBIR | |
---|---|---|---|---|
Consolidation or mass | 4.9 ± 0.2 | 4.7 ± 0.6 | 4.8 ± 0.4 | 4.9 ± 0.2 |
Ground-glass attenuation | 5.0 ± 0.2 | 4.8 ± 0.4 | 4.8 ± 0.4 | 4.8 ± 0.4 |
Reticular opacity | 5.0 ± 0 | 4.9 ± 0.4 | 5.0 ± 0 | 5.0 ± 0 |
Decreased lung attenuation (bulla, emphysema, or cyst) | 4.9 ± 0.2 | 4.5 ± 0.6 *§ | 4.6 ± 0.5 *§ | 4.9 ± 0.2 |
Mediastinal lymph node enlargement | 4.8 ± 0.4 | 3.0 ± 0.5 *§ | 4.0 ± 0.5 *§ | 4.7 ± 0.5 |