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      Diagnostic value of 18F-FDG-PET and PET-CT in children with fever of unknown origin or unexplained signs of inflammation

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      1 , , 1 , 1 , 2 , 2 , 1
      Pediatric Rheumatology Online Journal
      BioMed Central
      15th Paediatric Rheumatology European Society (PreS) Congress
      14-17 September 2008

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          Abstract

          Background Fever of unknown origin (FUO) and unexplained signs of inflammation are challenging medical problems and predominantly caused by infections, malignancies and noninfectious inflammatory diseases. The aim of this study was to assess the diagnostic value of fluorine-18 fluorodeoxyglucose positron emission tomography (18F-FDG-PET) and of its combination with computer tomography technology (PET-CT) in the diagnostic work-up in pediatric patients. Methods 47 FDG-PET and 23 PET-CT-scans of 63 patients (median age 7,2 years, 32 M, 31 F) were analyzed in this retrospective study. The diagnostic value of PET investigations in pediatric patients presenting with FUO (group 1, n = 41 scans) or unexplained signs of inflammation without fever (group 2, n = 29 scans) was analyzed. Results Of the total number of FDG-PET/PET-CT scans 32/57% were clinically helpful or diagnostic, respectively. In 54% (n = 38) of all scans the PET either was negative or findings could neither be confirmed nor excluded by extensive further diagnostic procedures. In scans with pathological findings (n = 32) further investigations confirmed the PET results in 81% (n = 26) of the cases. The accuracy of combined scans in these patients was 93%. A diagnosis in pediatric patients with FUO could be established in 32%, in patients with other signs of inflammation in 52%. Conclusion This is the first study demonstrating that FDG-PET and PET-CT may be a valuable imaging technique in the evaluation of children with FUO and unexplained signs of inflammation. Pathological findings help directing the diagnostic work-up in these patients. Because of its better accuracy, PET-CT is superior to 18F-FDG-PET.

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          Author and article information

          Conference
          Pediatr Rheumatol Online J
          Pediatr Rheumatol Online J
          Pediatric Rheumatology Online Journal
          BioMed Central
          1546-0096
          2008
          15 September 2008
          : 6
          : Suppl 1
          : P127
          Affiliations
          [1 ]University of Muenster, Dept. of General Paediatrics, Münster, Germany
          [2 ]University of Muenster, Dept. of Nuclear Medicine, Münster, Germany
          Article
          1546-0096-6-S1-P127
          10.1186/1546-0096-6-S1-P127
          3333923
          582caa17-2cea-44e5-a2ad-d50073e16b31
          Copyright ©2008 Däbritz et al; licensee BioMed Central Ltd.
          15th Paediatric Rheumatology European Society (PreS) Congress
          London, UK
          14-17 September 2008
          History
          Categories
          Poster Presentation

          Pediatrics
          Pediatrics

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