Published in:
01-01-2012 | Hepatobiliary Tumors
Preoperative FDG-PET Predicts Recurrence Patterns in Hepatocellular Carcinoma
Authors:
Koji Kitamura, MD, PhD, Etsuro Hatano, MD, PhD, Tatsuya Higashi, MD, PhD, Satoru Seo, MD, PhD, Yuji Nakamoto, MD, PhD, Kenya Yamanaka, MD, Taku Iida, MD, PhD, Kojiro Taura, MD, PhD, Kentaro Yasuchika, MD, PhD, Shinji Uemoto, MD, PhD
Published in:
Annals of Surgical Oncology
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Issue 1/2012
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Abstract
Purpose
We investigated the usefulness of preoperative fluorine-18 fluorodeoxyglucose positron emission tomography (FDG-PET) as a tool for predicting recurrence patterns to select patients for liver resection as an initial surgical strategy for hepatocellular carcinoma.
Methods
Sixty-three consecutive hepatocellular carcinoma patients undergoing FDG-PET were enrolled. They were classified according to the initial recurrence patterns (beyond the Milan criteria [MC], within the MC, and no recurrence) and the time intervals before initial postoperative recurrence (within 1 year, after 1 year or later, and no recurrence). The tumor-to-nontumor ratio (TNR) obtained by FDG-PET and survival rates were compared among the groups.
Results
TNR in the recurrence within the MC group (1.9 ± 1.6) and no recurrence group (1.3 ± 1.5) was significantly lower than that in the beyond the MC group (2.9 ± 2.6). TNR was an independent predictive factor of recurrence patterns in multivariate analysis. TNR in the groups with recurrence after 1 year or later (1.6 ± 0.8) and no recurrence (1.3 ± 0.5) were significantly lower than that in the within 1-year group (3.1 ± 2.7). TNR was an independent predictive factor of the interval before initial recurrence by multivariate analysis.
Conclusions
Preoperative FDG-PET predicts hepatocellular carcinoma recurrences within the MC or no recurrence and recurrences after 1 year or later. FDG-PET may be useful for selecting appropriate patients for liver resection as an initial surgical strategy.