Outcome analysis of (18)F-fluorodeoxyglucose positron-emission tomography in patients with lung cancer after partial volume correction.

BACKGROUND This study aimed to evaluate the necessity for the partial volume effect (PVE) correction of the maximum standardized uptake value (SUVmax) in (18)F-fluorodeoxyglucose positron-emission tomography (FDG-PET) for predicting outcome in patients with non-small cell lung cancer (NSCLC). PATIENTS AND METHODS A total of 191 patients, with tumor diameters ranging from 10-37 mm, underwent pre-operative FDG-PET and curative resection. The SUVmax (Pre-SUV) of the primary tumor was corrected (Cor-SUV) using a recovery coefficient curve based on phantom experiments. RESULTS The 5-year overall survival (OS) and disease-free survival (DFS) of the patients with high Pre-SUVs were lower than those with low Pre-SUVs (p<0.001 and p=0.002, respectively). The 5-year OS and DFS of patients with high Cor-SUVs were significantly lower than those with low Cor-SUVs (p<0.001 and p=0.005, respectively). CONCLUSION Even without PVE correction, SUVmax was able to predict for outcome in patients with NSCLC.

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