Optimization of BMI-Based Images for Overweight and Obese Patients - Implications on Image Quality, Quantification, and Radiation Dose in Whole Body F-FDG PET/CT Imaging.

Purpose: In PET/CT imaging, the activity of the F-FDG activity is injected either based on patient body weight (BW) or body mass index (BMI). The purpose of this study was to optimise BMI-based whole body F-FDG PET images obtained from overweight and obese patients and assess their image quality, quantitative value and radiation dose in comparison to BW-based images.

Methods: The NEMA-IEC-body phantom was scanned using the mCT 128-slice scanner.