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Correspondence response
Authors’ response to the eLetter by Moiseev et al
  1. Sergio Prieto-González1,
  2. Marina Depetris2,
  3. Ana García-Martínez1,3,
  4. Georgina Espígol-Frigolé1,
  5. Itziar Tavera-Bahillo1,
  6. Marc Corbera-Bellalta1,
  7. Ester Planas-Rigol1,
  8. Marco A Alba1,
  9. José Hernández-Rodríguez1,
  10. Josep M Grau4,
  11. Franciso Lomeña2,
  12. Maria C Cid1
  1. 1Vasculitis Research Unit, Department of Systemic Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
  2. 2Vasculitis Research Unit, Center for Diagnostic Imaging, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
  3. 3Vasculitis Research Unit, Department of Emergency Medicine, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
  4. 4Vasculitis Research Unit, Department of Internal Medicine, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
  1. Correspondence to Dr Maria C Cid, Vasculitis Research Unit, Department of Systemic Autoimmune Diseases, Hospital Clínic, University of Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona 8036, Spain; mccid{at}clinic.ub.es

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We thank Moiseev and colleagues for their interest in our manuscript addressing the sensitivity and specificity of positron emission tomography (PET)/CT with 18fluorodeoxyglucose (FDG) for detecting large-vessel inflammation in patients with giant-cell arteritis (GCA)1 and for sharing their own data.2 We totally agree with the authors that PET-CT may be a useful diagnostic tool for GCA although it may be still premature to state that PET/CT should be an independent diagnostic procedure. As mentioned in our article,1 one of the most important limitations in considering PET/CT as a routine diagnostic procedure is the lack of a precise definition of what is a positive or negative PET/CT. While cases with strong or no FDG uptake may …

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