Optimum energy for performing CT iodinated constrast studies

Abstract
CT [computed tomography] contrast for I as a function of X-ray energy from 80-140 kV constant potential was studied. The EMI CT1010 scanner was used for human skull phantom measurements of contrast signal, noise, artefact and dose. Optimum detectability occurred at 80-100 kV. Dose efficiency at 80 kV was better.