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Diagnostic performance of 18F-FDG PET/CT in patients with fever of unknown origin: a meta-analysis
Ruirui Hao1, Leilei Yuan, Ying Kan
1Medical Healthcare Center, Beijing Friendship Hospital of Capital Medical University, Beijing, People's Republic of China.
Purpose:
The aim of this study was to systematically review and perform a meta-analysis of published data on the diagnostic value of F-fluorodeoxyglucose (F-FDG) PET/CT in the diagnosis of patients with fever of unknown origin (FUO).
Materials And Methods:
A comprehensive computer literature search of studies published through 31 March 2012 on the use of F-FDG PET/CT in patients with FUO was performed in PubMed/MEDLINE, Embase, and Scopus databases. The pooled sensitivity of F-FDG PET/CT in patients with FUO on a per-patient-based analysis was calculated. The area under the receiver-operating characteristic curve was calculated to measure the accuracy of F-FDG PET/CT in the diagnosis of patients with FUO.
Results:
Fifteen studies comprising 595 patients with FUO were included in this meta-analysis. The pooled sensitivity of F-FDG PET/CT in detecting the cause of FUO was 85% (95% confidence interval 81-88%) on a per-patient-based analysis. The area under the receiver-operating characteristic curve was 0.88.
Conclusion:
F-FDG PET/CT demonstrated high sensitivity for the diagnosis of patients with FUO. F-FDG PET/CT is an accurate technique in this setting, but the possibility of false-positive results should be kept in mind. This meta-analysis demonstrated the value of F-FDG PET/CT in the diagnosis of patients with FUO.
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