Quantifying the effect of IV contrast media on integrated PET/CT: clinical evaluation.

Objectives: The use of IV contrast media in PET/CT can result in an overestimation of PET attenuation factors that potentially can affect interpretation. The objective of this study was to quantify the effect of IV contrast media in PET/CT and assess its impact on patients with intrathoracic malignancies.

Materials And Methods: Nine patients had CTs performed with and without IV contrast media followed by (18)F-FDG PET.