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SHR Neuro Krebs Kardio Lipid Stoffw Microb

Dejaco, C; Stradner, M; Zauner, D; Seel, W; Simmet, NE; Klammer, A; Heitzer, P; Brickmann, K; Gretler, J; Fürst-Moazedi, FC; Thonhofer, R; Husic, R; Hermann, J; Graninger, WB; Quasthoff, S.
Ultrasound for diagnosis of carpal tunnel syndrome: comparison of different methods to determine median nerve volume and value of power Doppler sonography.
Ann Rheum Dis. 2013; 72(12):1934-1939 Doi: 10.1136/annrheumdis-2012-202328
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Führende Autor*innen der Med Uni Graz
Dejaco Christian
Co-Autor*innen der Med Uni Graz
Brickmann Kerstin
Graninger Winfried
Gretler Judith
Hermann Josef
Husic Rusmir
Moazedi-Fürst Florentine
Quasthoff Stefan
Simmet Nicole
Stradner Martin Helmut
Zauner Dorothea

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To compare ultrasound measurement of median nerve cross-sectional area (CSA) at different anatomical landmarks and to assess the value of power Doppler signals within the median nerve for diagnosis of carpal tunnel syndrome (CTS). A prospective study of 135 consecutive patients with suspected CTS undergoing two visits within 3 months. A final diagnosis of CTS was established by clinical and electrophysiological findings. CSA was sonographically measured at five different levels at forearm and wrist; and CSA wrist to forearm ratios or differences were calculated. Intraneural power Doppler signals were semiquantitatively graded. Diagnostic values of different ultrasound methods were compared by receiver operating characteristic curves using SPSS. CTS was diagnosed in 111 (45.5%) wrists; 84 (34.4%) had no CTS and 49 (20.1%) were possible CTS cases. Diagnostic values were comparable for all sonographic methods to determine median nerve swelling, with area under the curves ranging from 0.75 to 0.85. Thresholds of 9.8 and 13.8 mm(2) for the largest CSA of the median nerve yielded a sensitivity of 92% and a specificity of 92%. A power Doppler score of 2 or greater had a specificity of 90% for the diagnosis of CTS. Sonographic median nerve volumetry revealed a good reliability with an intraclass correlation coefficient of 0.90 (95% CI 0.79 to 0.95). Sonographic assessment of median nerve swelling and vascularity allows for a reliable diagnosis of CTS. Determination of CSA at its maximal shape offers an easily reproducible tool for CTS classification in daily clinical practice.
Find related publications in this database (using NLM MeSH Indexing)
Adult -
Aged -
Carpal Tunnel Syndrome - diagnostic imaging
Carpal Tunnel Syndrome - pathology
Carpal Tunnel Syndrome - physiopathology
Case-Control Studies -
Female -
Forearm - diagnostic imaging
Forearm - innervation
Humans -
Male -
Median Nerve - blood supply
Median Nerve - diagnostic imaging
Median Nerve - pathology
Median Nerve - physiopathology
Middle Aged -
Neural Conduction -
Prospective Studies -
Regional Blood Flow -
Reproducibility of Results -
Sensitivity and Specificity -
Ultrasonography, Doppler - methods
Wrist - diagnostic imaging
Wrist - innervation

Find related publications in this database (Keywords)
Orthopedic Surgery
Qualitative research
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