Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
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
Web of Science
PubMed
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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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- Abstract:
- 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)
- Ultrasonography
- Orthopedic Surgery
- Qualitative research