Fig. 1From: Patients with juvenile idiopathic arthritis in clinical remission with positive power Doppler signal in joint ultrasonography have an increased rate of clinical flare: a prospective studyUltrasonographic parameters. Synovitis in the anterior elbow (a. Grade 1; b. Grade 2; c. Grade 3) and synovial flow in the radiocarpal wrist (d. Positive power Doppler signal)Back to article page