Whole-body PET/CT studies with lowered ¹⁸F-FDG doses: the influence of body mass index in dose reduction.

Unlabelled: The administered dose of (18)F-FDG can be greatly reduced using body mass index (BMI) instead of the patient's weight, without diminishing image quality. We have focused on reducing the administered dose while maintaining the acquisition time and have developed dosing-based algorithms using BMI. We conducted a prospective dose-adjustment research study with more than 1,800 patients undergoing time-of-flight PET/CT.