TABLE III.
Comparison results of heterogeneous polyenergetic DgN (pDgNhetero) values for displacement of the glandular distributions.
| Clinically relevant mammography spectra | ||||||
|---|---|---|---|---|---|---|
| Phantom (VGF) | Target /filtera | kV | HVL (mm Al) | Glandular distribution displacement | pDgNhetero (mGy/mGy) | Change (%) (relative to centered) |
| Medium (12.6%) | Mo–Mo | 31 | 0.4 | Centered | 0.169 | — |
| Superior | 0.232 | 37.3 | ||||
| Inferior | 0.124 | −26.6 | ||||
| Lateral | 0.173 | 2.4 | ||||
| W–Rh | 31 | 0.5 | Centered | 0.263 | — | |
| Superior | 0.338 | 28.5 | ||||
| Inferior | 0.205 | −22.1 | ||||
| Lateral | 0.267 | 1.5 | ||||
a
Mo–Mo (0.03 mm), W–Rh (0.05 mm).