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- W4361994746 abstract "Introduction: The aim of this investigation was to estimate the diagnostic performance of positron emission tomography/computed tomography using fluorine-18 fluoro-deoxyglucose (18F-FDG PET/CT) in the follow-up of post-treatment laryngeal squamous cell carcinoma (SCC) and the survival rate. Material and methods: Fifty seven patients (50 males, 7 females), mean age (68.3±6.7), with post-treatment laryngeal SCC were investigated. Indications for 18F-FDG PET/CT were: post-surgery staging, post-therapy restaging with positive/uncertain CT, follow-up, suspected recurrence on CT. 18F-FDG PET/CT findings were compared to the clinical follow-up of up to 10 years after imaging. The degree of metabolic activity was analyzed visually and semi-quantitatively using the maximum standardized uptake value (SUVmax). Results: A high accumulation of radiopharmaceutical was found in 41 (71.9%) patients who were considered true positive, physiological in 14 patients (24.5%) and only two males (3.5%) were false positive. Overall sensitivity of 18F-FDG PET/CT was 95.3%, specificity 100.0%, positive predictive value 100.0%, negative predictive value 87.5% and accuracy 96.5%. In 19 cases (33.3%) PET/CT findings significantly influenced further management of the patients. Progression-free survival (PFS) in the 18F-FDG positive group was 41.1±12.7 months. Statistically significant correlation between SUVmax and PFS was not observed (p>0.05). Conclusion: 18F-FDG PET/CT is a valuable tool for the follow-up of laryngeal SCC due to its high sensitivity, specificity, PPV, NPV and accuracy. It can influence the patients' management in a significant number of cases. Patients with negative 18F-FDG PET/CT findings had longer PFS than those with positive ones, but without statistical significance. SUVmax was not proven to be a strong predictor of patients' disease-free survival." @default.
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- W4361994746 date "2023-01-01" @default.
- W4361994746 modified "2023-10-18" @default.
- W4361994746 title "The role of 18F-FDG PET/CT in the follow-up of laryngeal cancer after treatment" @default.
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- W4361994746 doi "https://doi.org/10.5937/medi55-41034" @default.
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