1. Spectrum of ultrasound grey scale on the dorsal aspects of the wrists ((a) to (d)), MCPs ((e) to (h)), PIPs ((i) to (l)) and MTPs ((m) to (p)): grade 0 ((a), (e), (i) and (m)), grade 1 ((b), (f), (j) and (n)), grade 2 ((c), (g), (k) and (o)) and grade 3 ((d), (h), (l) and (p)).
Spectrum of ultrasound grey scale on the dorsal aspects of the wrists ((a) to (d)), MCPs ((e) to (h)), PIPs ((i) to (l)) and MTPs ((m) to (p)): grade 0 ((a), (e), (i) and (m)), grade 1 ((b), (f), (j) and (n)), grade 2 ((c), (g), (k) and (o)) and grade 3 ((d), (h), (l) and (p)). Courtesy of J. L. Nam et al, Leeds, reproduced with permission from Annals of the Rheumatic Diseases.18 C, capitate; L, lunate; MC, metacarpal; MCPs, metacarpophalangeal joints; MP, middle phalanx; MT, metatarsal; MTP, metatarsophalangeal joints; PIPs, proximal interphalangeal joints; PP, proximal phalanx; R, radius.
Sarah C Horton et al. RMD Open 2017;3:e000394
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