Abstract
Purpose
The purpose of this study was to determine whether post-treatment [18F]fluorodeoxyglucose (FDG) uptake measured as the maximum standardized uptake value (SUVmax) by integrated positron emission tomography (PET)/computed tomography (CT) imaging has prognostic significance in patients with endometrial carcinoma.
Methods
Patients previously treated by primary surgical staging for endometrial carcinoma were imaged with integrated FDG PET/CT during surveillance. PET/CT findings were compared with histological or clinical evaluation, and the relationship between SUVmax on PET/CT and recurrence was examined.
Results
A total of 61 patients were eligible for analysis. Medical records were retrospectively reviewed for clinical data, treatment modalities and outcome. The median duration of follow-up was 31 months (range 6–102 months) post-treatment. SUVmax levels were inversely associated with disease-free survival (DFS). Patients were divided into two groups according to SUVmax (<4.25 versus ≥ 4.25). The Kaplan-Meier survival graph showed a significant difference in DFS between groups [p < 0.001, hazard ratio (HR) 12.959, 95% confidence interval (CI) 3.650–46.011]. In multivariate analyses, post-treatment SUVmax (uncategorized values) evaluated by surveillance PET/CT (p = 0.001, HR 1.199, 95% CI 1.077–1.334) and serous adenocarcinoma histology (p = 0.028, HR 5.594, 95% CI 1.207–25.931) were significantly associated with recurrence.
Conclusion
Post-treatment FDG uptake as measured by SUVmax showed a significant association with recurrence in patients with endometrial carcinoma and may be used as a new useful prognostic marker.
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Chung, H.H., Kim, J.W., Kang, K.W. et al. Post-treatment [18F]FDG maximum standardized uptake value as a prognostic marker of recurrence in endometrial carcinoma. Eur J Nucl Med Mol Imaging 38, 74–80 (2011). https://doi.org/10.1007/s00259-010-1614-y
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DOI: https://doi.org/10.1007/s00259-010-1614-y