Table 1.
Parameters for the imaging techniques used in this study.
| CBCT Low‐dose Thorax | CBCT Under Breast | CBCT Low‐dose Thorax 10ms | kV‐kV Thorax AP | kV‐kV Thorax Lateral | |
|---|---|---|---|---|---|
| Tube voltage (kVp) | 110 | 110 | 110 | 75 | 95 |
| Tube current (mA) per projection | 20 | 20 | 20 | 200 | 200 |
| Exposure time (ms) per projection | 20 | 20 | 10 | 25 | 200 |
| Gantry Rotation | |||||
| Range (degrees) | 360 | 200 | 360 | – | – |
| Number of Projections | 655 | 360 | 655 | 1 | 1 |
| Exposure (mAs) | 262 | 144 | 131 | 5 | 40 |
| Scan Fan Type | Half fan | Full fan | Half fan | – | – |
| Bow‐tie Filter | Half | Full | Half | – | – |
| Blade X1 (cm) | 6.8 | 13.6 | 6.8 | 13.7 | 13.7 |
| Blade X2 (cm) | 23.5 | 13.6 | 23.5 | 13.7 | 13.7 |
| Blade Z1 (cm) | 10.3 | 9.2 | 10.3 | 10.3 | 10.3 |
| Blade Z2 (cm) | 10.3 | 9.2 | 10.3 | 10.3 | 10.3 |