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. 2016 May 10;89(1063):20160138. doi: 10.1259/bjr.20160138

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© 2016 The Authors. Published by the British Institute of Radiology

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Figure 3. — Fluorine-18 fludeoxyglucose (¹⁸F-FDG) uptake patterns in patients with rheumatoid arthritis (RA): (a) axial section from the positron emission tomography (PET)/CT image showing elevated ¹⁸F-FDG uptake in the dorsal (green arrow) [maximum standardized uptake value (SUV_max) = 2.93] and volar (light blue arrow) (SUV_max = 3.12) radiocarpal compartments. The white arrow shows a “cold” pisiform–triquetral compartment in this patient. The linear range of the PET colour scale is 26–100% of the SUV_max; (b) axial section from the PET/CT image of a different patient with RA showing elevated ¹⁸F-FDG uptake in the pisiform–triquetral compartment (white arrow) (SUV_max = 3.80). The linear range of the PET colour scale is 26–77% of the SUV_max. For colour image see online.