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18F-FDG PET/CT in evaluation of radiofrequency ablation of liver metastasis
Sanjay Thulkar1, Madhavi Chawla, Punit Sharma
1Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India.
Abstract:
Image-guided radiofrequency ablation (RFA) is a minimally invasive therapy option in the treatment of primary and secondary hepatic malignancies, which are not suitable for surgery/chemotherapy, and more recently, for tumors with limited hepatic involvement and solitary liver metastasis. Accurate assessment of treatment response after RFA remains a concern. Conventional imaging modalities have limitations of differentiation between residual/recurrence from post-RFA changes. We illustrate images of 3 patients in whom (18)F-FDG PET/CT was used for response assessment and restaging after RFA in liver tumors.
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