Diagnostic value of axillary artery ultrasound in patients with suspected giant cell arteritis

Objectives To compare colour duplex ultrasonography (CDU) findings with axillary 18F-fluorodeoxyglucose (FDG) PET/CT findings and to compare the diagnostic performance of temporal and axillary artery CDU with temporal artery CDU alone. Methods Patients suspected of GCA were retrospectively included. Presence of a halo or occlusion was considered a positive CDU finding. FDG-PET/CT-assessed axillary artery involvement was defined as axillary...