A systematic approach to the consensus definitions and reliability of ultrasound in idiopathic inflammatory myopathies; Preliminary data by the OMERACT ultrasound in myositis working group
AIM: Current ultrasound grading tools do not fulfil the criteria of the OMERACT Filter 2.1 Instrument Selection Algorithm (OFISA)and are not idiopathic inflammatory myopathies (IIM)-specific, prompting further work by the OMERACT US Working Group. The aim of this study was, ther…