ASAS	Assessment of Spondyloarthritis International Society
CDUS	Color Doppler Ultrasound
CT	Computer Tomography
CRMO	Chronic Recurrent Multifocal Osteomyelitis
DCE-MRI	Dynamic Contrast-Enhanced MRI
DIR	Double Inversion Recovery
DWI	Diffusion-weighted Imaging
EFSUMB	European Federation of Societies for Ultrasound in Medicine and Biology
ERA	Enthesitis Related Arthritis
EULAR	European League Against Rheumatism
GRE	Gradient Echo
HeC	Health-e-Child
JAMRIS	Juvenile Idiopathic Arthritis MRI Score
JIA	Juvenile Idiopathies Arthritis
MRI	Magnetic Resonance Imaging
MSK	Musculoskeletal
mSMI	monochromatic Superb Microvascular Imaging
OMERACT	Outcome Measures in Rheumatology
PDUS	Power Doppler Ultrasound
PRES	Pediatric Rheumatology European Society
RA	Rheumatoid Arthritis
RAMRIS	Rheumatoid Arthritis MRI Scoring
SI	Signal Intensity
SMI	Superb Microvascular Imaging
SpA	Spondyloarthritis
STIR	Short Tau Inversion Recovery
SWE	Shear Wave Elastography
TMJ	Temporomandibular joint
TSE	Time Spin Echo
US	Ultrasound
VI	Vascularity Index
VIBE	Volume-Interpolated Breath-hold Examination
WBMRI	Whole- Body MRI