Abstract：Objective: To discuss the application of 18F-FDG PET/CT imaging after interventional treatment of hepatic malignancies. Materials and Methods: Eighteen patients(15 males and 3 females, 36~83 years old and 61.5 years old as an average) who underwent interventional treatments for hepatic malignancies were included in the study. A strong impression of tumor residual remaining or recrudescence was drawn according to clinical symptoms or AFP value but negative findings were got on conventional imaging. A whole body PET/CT examination was performed and the PET/CT results were compared with the final results of histology or close follow-up. Results: Twenty-eight foci were found and finally confirmed. 93.7%(15/16) of the foci inside liver and 100%(12/12) of the foci outside liver could be detected by PET/CT. The detection rate of PET/CT was 96.4%. 18F-FDG PET/CT was able to detect at least 1 lesion in 15 cases. Conclusion: 18F-FDG PET/CT not only can help to confirm those undetectable foci of hepatic malignancies on conventional imaging for recrudescence or newly-onset after interventional treatments, but also is able to show foci outside the liver parenchyma.
2008, Vol. 19 
