Table 3.

Body areas undergoing magnetic resonance imaging (MRI) and ultrasound (US) evaluation

Articular Site	Number of joints	MRI	US
Spine	42	X
Sacro-Iliac joints (SIJ)	2	X
Acromion-clavicular joints	2	X
Wrists	2	X	X
Metacarpo-phalangeal joints (from 1 to 5)	10	X	X
Proximal interphalangeal joints of the hands (from 1 to 5)	10	X	X
Distal interphalangeal joints of the hands (2–5)	8	X
Hips	2	X
Knees	2	X	X
Ankles	2	X	X
Mid/Hind foot	2	X
Metatarso-phalangeal joints (from 1 to 5)	10	X	X
Entheseal Site	Number of areas
Lateral humeral epicondyle	2		X
Quadriceps insertion onto patella	2		X
Medial Femoral Condyle	2	X
Proximal patellar ligament insertion	2		X
Distal patellar ligament insertion	2		X
Achilles’ tendon distal insertion	2	X	X
Plantar fascia proximal insertion	2	X	X