TABLE I.
Measured entrance exposure of phantom studies compared with DTS.
Phantom | Imaging method | Tube voltage (kVp) | mA s | Entrance dose (mR) | Uncertainty (mR) |
---|---|---|---|---|---|
Bubble wrap | In-line phase contrast tomosynthesis | 120 | 124.0 | 4 938.3 | 8.05 |
Conventional DTS | 40 | 5 322.7 | 9.82 | ||
Fishbone | In-line phase contrast tomosynthesis | 120 | 155.0 | 6 141.1 | 8.98 |
Conventional DTS | 40 | 6 683.6 | 7.20 | ||
Chicken breast | In-line phase contrast tomosynthesis | 120 | 258.4 | 10 229.7 | 7.97 |
Conventional DTS | 40 | 11 098.5 | 6.83 |