Fig. 3From: Achieving safe and high-performance gastrointestinal tract spectral CT imaging with small-molecule lanthanide complexHU curves and spectral CT images of Ho-DOTA and iohexol at different concentrations (0, 0.0125, 0.025, 0.05, 0.1 and 0.2 M Ho or I) at a 40 keV; b 80 keV; c 120 keV. d Different mono-chromatic energiesBack to article page