Table 1 (abstract P203). Evaluation scheme for the interpretation and scoring of MSUS in JDM and data from the cohort

remarkable findings (0-1) 0 = no 1 = yes

Texture (0-2) 0 = homogeneous 1 = inhomogeneous 2 = polymorph

Echogenity (0-2) 0 = black >> white 1 = increased 2 = white > black

Structure (0-2) 0 = feathery intact muscle fibers

1 = reticular speckled, spotted 2 = lamellary, focal streaky

Perfusion Fascia and intramuscular (0-1) 0 = not increased 1 = increased

Fascia (0-2) 0 = unremarkable 1 = thickend/stapled 2 = destroyed structure

Calcinosis (0-1) 0 = no 1 = intramuscular/epifascial

Total (max. 66)