The Role of Ultrasonography in the Assessment of Carpal Tunnel Syndrome Camala Smith, MD, John O'Neill, MD, FRCR, MSc, MRCPI, Naveen Parasu, FRCR, Karen.

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The Role of Ultrasonography in the Assessment of Carpal Tunnel Syndrome Camala Smith, MD, John O'Neill, MD, FRCR, MSc, MRCPI, Naveen Parasu, FRCR, Karen Finlay, FRCR Canadian Association of Radiologists Journal Volume 60, Issue 5, Pages 279-280 (December 2009) DOI: 10.1016/j.carj.2009.06.004 Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 1 Normal US distal carpal tunnel. MN (arrow) = median nerve; FR (+-+) = flexor retinaculum; HH = hook hamate; T = trapezium. Canadian Association of Radiologists Journal 2009 60, 279-280DOI: (10.1016/j.carj.2009.06.004) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions

Figure 2 A patient with rheumatoid arthritis and with clinical CTS. US level carpal tunnel, demonstrating an enlarged median nerve (arrows), measuring 14 mm2 in cross-sectional area. In addition, there is echogenic material with internal flow on power Doppler in the ulnar and radial bursa in keeping with active moderate-to-severe synovitis. Diagnosis of CTS secondary to active synovitis of bursae related to rheumatoid arthritis. Canadian Association of Radiologists Journal 2009 60, 279-280DOI: (10.1016/j.carj.2009.06.004) Copyright © 2009 Canadian Association of Radiologists Terms and Conditions