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  • Title: Chest CT and whole-body 18F-FDG PET are cost-effective in screening for distant metastases in head and neck cancer patients.
    Author: Uyl-de Groot CA, Senft A, de Bree R, Leemans CR, Hoekstra OS.
    Journal: J Nucl Med; 2010 Feb; 51(2):176-82. PubMed ID: 20124045.
    Abstract:
    UNLABELLED: The aim of the study was to define the cost-effectiveness of whole-body (18)F-FDG PET, as compared with chest CT, in screening for distant metastases in patients with head and neck squamous cell carcinoma (HNSCC). METHODS: In a multicenter prospective study, 145 consecutive patients with high risk factors for distant metastases and scheduled for extensive treatment underwent chest CT and whole-body (18)F-FDG PET for screening of distant metastases. The cost data of 80 patients in whom distant metastases developed or who had a follow-up of at least 12 mo were analyzed. Cost-effectiveness analysis, including sensitivity analysis, was performed to compare the results of (18)F-FDG PET, CT, and a combination of CT and (18)F-FDG PET (CT + (18)F-FDG PET). RESULTS: Pretreatment screening identified distant metastases in 21% of patients. (18)F-FDG PET had a higher sensitivity (53% vs. 37%) and positive predictive value (80% vs. 75%) than did CT. CT + (18)F-FDG PET had the highest sensitivity (63%). The average costs in the CT, (18)F-FDG PET, and CT + (18)F-FDG PET groups amounted to euro38,558 (approximately $57,705), euro38,355 (approximately $57,402), and euro37,954 (approximately $56,801), respectively, in the first year after screening. CT + (18)F-FDG PET resulted in savings between euro203 (approximately $303) and euro604 (approximately $903). Sensitivity analysis showed that the dominance of CT + (18)F-FDG PET was robust. CONCLUSION: In HNSCC patients with risk factors, pretreatment screening for distant metastases by chest CT is improved by (18)F-FDG PET. The combination of (18)F-FDG PET with CT is the most effective, without leading to additional costs.
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