Hypoattenuating tumor | Isoattenuating tumor | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
40 keV | 50 keV | 60 keV | 70 keV | 80 keV | PEI | Kappa | 40 keV | 50 keV | 60 keV | 70 keV | 80 keV | PEI | Kappa | |
Tumor conspicuity | *4.8 ± 0.4 | *4.6 ± 0.5 | *3.9 ± 0.4 | 3.3 ± 0.5 | 2.7 ± 0.5 | 3.4 ± 0.6 | 0.71 | *3.8 ± 0.4 | *3.6 ± 0.4 | 3.2 ± 0.3 | 2.8 ± 0.4 | 2.6 ± 0.4 | 2.9 ± 0.3 | 0.60 |
Tumor margin sharpness | *4.7 ± 0.4 | *4.3 ± 0.7 | *3.6 ± 0.5 | 2.9 ± 0.6 | 2.5 ± 0.4 | 3.1 ± 0.5 | 0.68 | *3.7 ± 0.4 | *3.5 ± 0.4 | 3.2 ± 0.4 | 2.7 ± 0.4 | 2.4 ± 0.4 | 2.7 ± 0.4 | 0.66 |
Image quality | *4.0 ± 0.3 | *4.6 ± 0.5 | *3.4 ± 0.5 | 3.2 ± 0.4 | 2.8 ± 0.4 | 3.2 ± 0.3 | 0.67 | *3.8 ± 0.3 | *4.4 ± 0.6 | 3.5 ± 0.5 | 3.2 ± 0.3 | 2.9 ± 0.3 | 3.2 ± 0.4 | 0.69 |
Depiction of arteries | *5.0 ± 0 | *4.8 ± 0.4 | 4.3 ± 0.5 | 3.6 ± 0.5 | 3.2 ± 0.4 | 4.3 ± 0.6 | 0.80 | *5.0 ± 0 | *4.8 ± 0.4 | 4.2 ± 0.3 | 3.6 ± 0.5 | 3.2 ± 0.4 | 4.2 ± 0.4 | 0.71 |
Depiction of veins | *4.5 ± 0.5 | *4.2 ± 0.6 | 3.5 ± 0.5 | 3.2 ± 0.3 | 2.5 ± 0.5 | 3.4 ± 0.4 | 0.70 | *4.6 ± 0.5 | *4.3 ± 0.4 | 3.6 ± 0.4 | 3.2 ± 0.4 | 2.7 ± 0.4 | 3.6 ± 0.5 | 0.70 |