Fig. 1From: Feasibility of CT quantification of intratumoural 166Ho-microspheresPhantom. a The phantom setup of ten 5-mL Eppendorf tubes in styrofoam. b Three-dimensional computed tomography reconstruction of the phantom showing the increasing concentrations of Ho in mg/mL. c Regression slopes of HU values obtained by the calculated concentration of Ho in mg/mLBack to article page