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Place of 18F-FDG-PET with computed tomography in the diagnostic algorithm of patients with fever of unknown origin

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Abstract

There is evidence for the interest of 18F-fluoro-deoxyglucose positron emission tomography with computed tomography (18F-FDG-PET/CT) in fever of unknown origin (FUO) clinical investigation. However, little and conflicting data exist about its place in the investigation procedure. The aim of this work was to evaluate the clinical value of 18F-FDG-PET/CT in patients with FUO and identify patients who need early 18F-FDG-PET/CT rather than a last-resort procedure. We performed a 2-year retrospective cohort study at the Nîmes University Hospital, France. A total of 79 patients (36 men, 43 women, mean age 54.0 ± 16.2 years) with FUO underwent 18F-FDG-PET/CT. A final diagnosis was established in 61 (77.2 %) cases. Aetiologies of FUO were determined using 18F-FDG-PET/CT findings in 45 (73.8 % of patients with diagnosis) cases. The sensibility and specificity value were 98 % and 87 %, respectively. The presence of adenopathy, low haemoglobin and increased C-reactive protein (CRP) were predictors of high-yield 18F-FDG-PET/CT. 18F-FDG-PET/CT may help to detect most causes of FUO. The predictors of high-yield 18F-FDG-PET/CT found in this study can help identify patients likely to benefit from specific and early imaging techniques.

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Authors and Affiliations

  1. Service des Maladies Infectieuses et Tropicales, CHU Caremeau, 30000, Nîmes cedex, France

    J. Crouzet, C. Lechiche & A. Sotto

  2. Service de Médecine Nucléaire, CHU Caremeau, Nîmes, France

    V. Boudousq, J. P. Pouget, P. O. Kotzki & L. Collombier

  3. INSERM, U896 Université Montpellier 1, Nîmes, France

    V. Boudousq

  4. Direction de la Radioprotection de l’Homme, IRSN, Fontenay-aux-Roses, France

    J. P. Pouget

  5. UFR de Médecine, INSERM, U0147, Université Montpellier 1, Nîmes, France

    J. P. Lavigne & A. Sotto

  6. Laboratoire de Bactériologie, CHU Caremeau, Nîmes, France

    J. P. Lavigne

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  1. J. Crouzet
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  2. V. Boudousq
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  3. C. Lechiche
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  4. J. P. Pouget
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  5. P. O. Kotzki
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  6. L. Collombier
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  7. J. P. Lavigne
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  8. A. Sotto
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Correspondence to J. Crouzet.

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Crouzet, J., Boudousq, V., Lechiche, C. et al. Place of 18F-FDG-PET with computed tomography in the diagnostic algorithm of patients with fever of unknown origin. Eur J Clin Microbiol Infect Dis 31, 1727–1733 (2012). https://doi.org/10.1007/s10096-011-1440-6

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  • DOI: https://doi.org/10.1007/s10096-011-1440-6

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