caa a22 4500 477108458 CHVBK 20180405111602.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF01411366 doi (NATIONALLICENCE)springer-10.1007/BF01411366 Diagnosis and staging of carpal tunnel syndrome: Comparison of magnetic resonance imaging and intra-operative findings [Elektronische Daten] [A. Kleindienst, B. Hamm, G. Hildebrandt, N. Klug] Summary: Purpose: In order to determine the reliability of magnetic resonance imaging (MRI) in the diagnosis and staging of carpal tunnel syndrome (CTS), the most common entrapment neuropathy, the following prospective study has been performed.Methods: We compared clinical and electrophysiological studies in 58 cases of CTS with MRI investigations and confirmed the reliability by exact correspondence with intra-operative findings.Results: Typical MRI characteristics of the median nerve in CTS have been established. There is a significant difference in flattening (p < 0.05), swelling (p < 0.01) and signal intensity (p < 0.05) of the median nerve between early and advanced CTS. Comparison of MRI and intra-operative findings revealed that median nerve compression was diagnosed correctly in 91% of cases. Additional lesions in the carpal tunnel, which are a primary cause of nerve compression, were established by MRI in 25 cases and confirmed by surgery.Conclusion: MRI is a reliable diagnostic tool for assessing as well as staging of CTS. Morphological changes following chronic nerve compression can be visualized. It is particularly useful in cases of suspected lesions within the carpal tunnel as a cause of CTS. The information provided may support the choice of adequate treatment modality. Springer-Verlag, 1996 Carpal tunnel syndrome nationallicence magnetic resonance imaging nationallicence peripheral nerve lesion nationallicence Kleindienst A. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut Hamm B. Department of Radiology, Charité, Humboldt-Universität zu Berlin, Federal Republic of Germany aut Hildebrandt G. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut Klug N. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut Acta Neurochirurgica Springer-Verlag 138/2(1996-02-01), 228-233 0001-6268 138:2<228 1996 138 701 https://doi.org/10.1007/BF01411366 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01411366 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kleindienst A. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut NATIONALLICENCE 700 1- Hamm B. Department of Radiology, Charité, Humboldt-Universität zu Berlin, Federal Republic of Germany aut NATIONALLICENCE 700 1- Hildebrandt G. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut NATIONALLICENCE 700 1- Klug N. Department of Neurosurgery, University of Cologne, Federal Republic of Germany aut NATIONALLICENCE 773 0- Acta Neurochirurgica Springer-Verlag 138/2(1996-02-01), 228-233 0001-6268 138:2<228 1996 138 701 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer