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Background Rheumatoid arthritis is a long-term autoimmune disease and inflammatory disorder. The damaging effect on cartilage, bone, ligaments, and tendons has raised the importance of the accurate diagnosis of structural damage, disease activity and severity assessment to enable therapeutic decisions and to evaluate disease outcome. US is non invasive, relatively cheap and widely accessible imaging tool that facilitates the detection of synovitis joint effusin and erosions more better than clinical, laboratory investigations alone and x-ray. Aim of the Work assess the role of of gray-scale and Doppler ultrasound early detection and characterization of synovitis and structural bone changes in wrist and hand joints in patients with Rheumatoid Arthritis by comparing qualitative and quantitative US parameters with clinical and laboratory indicators of disease activity. Patients and Methods A cross sectional study conducted onthirty five adult patients with RA . All the patients were diagnosed according to the 2010 ACR/European League . The patients were recruited from the Rheumatology and Rehabilitation Outpatient Clinic, Faculty of Medicine, Ain Shams Hospitals .The study was approved by the ethical committee, and consents were taken from all patients enrolled in the study. Patients assessed by history taking, Clinical examination, Laboratory investigations and US gray scale and US power Doppler was done for each patient. Results This study included 35 patients with established RA, 27 females (77.1%) and 8 males (22.9%). Ranged in age between 20-70 years with mean age [45.66±12.76],the mean CDAS28 was [4.62±1.37], ESR [44.93±20.79], CRP [15.92±9.03], 33 patients (94.3%) were found to have synovial thickening, 14 patient (40%) were found to have increased vascularity by PD, joint effusion was detected in 12 patient (34.3%) particularly in MCP joints, 13 (37.1%) had bone erosion and only 9 patients (25.7%) had Tenosynovitis, most of them were detected at the extensor compartment of the wrist joint.positive correlations found between the clinical disease activity indices, laboratory investigations, duration of illness and components of the US findings. Conclusion Ultrasound is non invasive, relatively cheap and widely accessible imaging tool that facilitates the detection of synovitis and erosions,, high resolution gray scale images combined with Doppler technique have made it possible to detect slow low volume blood flow, thus improving the outcome of the standard clinical assessment in Rheumatoid synovial inflammation.

Sonographic and Duplex Evaluation of Synovial activity in Wrist and Hand Joints in Rheumatoid Arthritis