Table 1 Test of μ-maps for mMR cross-calibration: concentrations (kBq/ml) and ratios
μ-map | Reference concentration | mMR concentration | mMR Xcal concentration ratio |
|---|---|---|---|
CT-based (+8 mm in x) | 10.77 | 10.79 | 1.00 |
CT-based (−10 mm in x) | 10.77 | 10.79 | 1.00 |
CT-based (−2 mm in x) | 18.78 | 19.04 | 1.01 |
CT-based (no shift) | 11.29 | 11.57 | 1.02 |
mMR water (original) | 11.86 | 11.96 | 1.01 |
mMR water (original) | 10.77 | 10.91 | 1.01 |
mMR water (original) | 11.29 | 11.55 | 1.02 |