Noda Y, Goshimab S, Nakashima Y, et al. - In this cohort study of 204 consecutive individuals who underwent whole-body single-source dual-energy CT (DECT) to screen for tumor metastases and/or recurrence following surgical resection of malignant tumors, experts examined iodine dose concentration needed for adequate hepatic parenchymal enhancement on fast-kilovoltage-switching DECT of the abdomen on the basis of individual body weight. It was recognized that the iodine dose could be lessened to 400 mgI/kg at 65 keV or 500 mgI/kg at 70 keV in DECT without jeopardizing hepatic parenchymal improvement.