Image noise
Noise was lower at 50 keV than in the control, but the effect size was small. Noise was higher at 40 keV than both 50 keV and control with large and small effect sizes, respectively. This difference in effect size is partially due to the paired comparison between 40 and 50 keV. Thus, with different VMIs, DECT allows for both higher attenuation and lower noise, since both VMIs are available to the radiologist in clinical practice,