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Standard parameters of the chest ULD-CT protocol
| Parameter | ULD-CT |
|---|---|
| Tube voltage | 100 kV |
| Tube current modulation range | 10–740 mA |
| Noise Index | 85 |
| CTDIvol | 0.41 |
| Scan time | 0.5 s |
| Pitch | 0.5 |
| Collimation | 128 × 0.625 mm |
| Kernel | Lung, mediastinum |
| ASIR-V | 50% |
ULD-CT: Ultralow-dose computed tomography
CTDIvol: Volumetric Computed Tomography Dose Index
ASIR-V: Adaptive Statistical Iterative Reconstruction
