All these criteria integrated only clinical criteria without imaging assessment. In this context, ultrasound joint is daily performed without definition of remission. A discrepancy exists between clinical remission and persistence of active disease with ultrasound joint presence of a Doppler effect indicating inflammation and the risk of progression of joint damage. A definition of remission in RA could include erosions regression in subchondral bone (at best measured by high resolution peripheral quantitative computed tomography (HR-pQCT)).