Definitions and reliability assessment of elementary ultrasound lesions in giant cell arteritis: a study from the OMERACT Large Vessel Vasculitis Ultrasound Working Group.
Stavros ChrysidisChristina DuftnerChristian DejacoValentin S SchäferSofia RamiroGreta CarraraAnd Carlo Alberto ScirèAlojzija HocevarAndreas P DiamantopoulosAnnamaria IagnoccoChetan MukhtyarCristina PonteEsperanza NaredoEugenio De MiguelGeorge A BruynKenneth J WarringtonLene TerslevMarcin MilchertMaria Antonietta D'AgostinoMattew J KosterNaina RastalskyPetra HanovaPierluigi MacchioniTanaz A KermaniTove LorenzenUffe Møller DøhnUlrich FredbergWolfgang HartungBhaskar DasguptaWolfgang A SchmidtPublished in: RMD open (2018)
The 'halo' and the 'compression' signs are regarded as the most important US abnormalities for GCA. The inter-rater and intra-rater agreement of the new OMERACT definitions for US lesions in GCA was excellent.