Table 2 Mean image quality parameters for conventional 140 kVp and 130 keV virtual monochromatic imaging with and without O-MAR, without insertion of prostheses. Values are the mean of all 18 pellets ± standard deviation
CT values (HU) | CNR | SNR | Noise (HU) | |
|---|---|---|---|---|
Conventional | 248.4 ± 4.1 | 37.3 ± 2.8 | 36.5 ± 5.2 | 6.9 ± 1.0 |
Conventional with O-MAR | 248.4 ± 4.1 | 37.3 ± 2.8 | 36.5 ± 5.2 | 6.9 ± 1.0 |
130 keV VMI | 150.4 ± 4.5 | 18.0 ± 1.5 | 19.3 ± 3.2 | 8.0 ± 1.2 |
130 keV VMI with O-MAR | 150.4 ± 4.5 | 18.0 ± 1.5 | 19.3 ± 3.2 | 8.0 ± 1.2 |