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Assessment of transverse ultrasonographic parameters to optimize carpal tunnel syndrome diagnosis in a case–control study
Author(s) -
Korstanje JanWiebe H.,
Balen Richard,
ScheltensDe Boer Marjan,
Blok Joleen H.,
Slijper Harm P.,
Stam Henk J.,
Hovius Steven E.R.,
Selles Ruud W.
Publication year - 2013
Publication title -
muscle and nerve
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.025
H-Index - 145
eISSN - 1097-4598
pISSN - 0148-639X
DOI - 10.1002/mus.23788
Subject(s) - carpal tunnel syndrome , ultrasound , medicine , carpal tunnel , tendon , median nerve , transverse plane , physical medicine and rehabilitation , surgery , radiology
: Transverse ultrasound measurements of the median nerve (MN) for diagnosis of carpal tunnel syndrome (CTS) suffer from inconsistent findings within and between patients and healthy subjects. The objective of this study was to improve ultrasound assessment of CTS. Methods : In a case–control study (51 patients, 25 controls) we evaluated the performance gained by: (1) correcting for ultrasound probe angulation; (2) including active parameters such as forceful gripping of the hand; and (3) including hand flexor tendon parameters. Results : Correcting ultrasound probe angulation increased the correct classification rate by 4.5%; including forceful gripping resulted in increasing it by 2.8%; and including the hand flexor tendon resulted in an increase of 1.3%. Conclusions : The best predictive model combines correcting probe angulation with forceful gripping parameters and hand flexor tendon parameters. However, the clinically most practical model might use only probe angulation correction. Muscle Nerve 48 : 532–538, 2013