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DOI:10.2214/AJR.07.2126
AJR 2007; 189:1199-1202
© American Roentgen Ray Society

Clinical Observations

A Pilot Study of Early 18F-FDG PET to Evaluate the Effectiveness of Radiofrequency Ablation of Liver Metastases

Amir H. Khandani1,2, Benjamin F. Calvo2,3, Bert H. O'Neil2,4, Jennifer Jorgenson1,5 and Matthew A. Mauro2,5

1 Section of Nuclear Medicine, Department of Radiology, UNC School of Medicine, CB #7510, Chapel Hill, NC 27599-7510.
2 UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC.
3 Division of Surgical Oncology, Department of Surgery, UNC School of Medicine, Chapel Hill, NC.
4 Division of Hematology–Oncology, Department of Medicine, UNC School of Medicine, Chapel Hill, NC.
5 Section of Vascular and Interventional Radiology, Department of Radiology, UNC School of Medicine, Chapel Hill, NC.

OBJECTIVE. The objective of our study was to collect pilot data about the use of FDG PET within hours after radiofrequency ablation (RFA) of liver metastases.

CONCLUSION. Total photopenia on early PET can potentially be regarded as a macroscopic tumor-free margin; focal uptake can be regarded as macroscopic residual tumor.

Keywords: FDG PET • liver cancer • liver metastasis • metastases • oncologic imaging • radiofrequency ablation


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