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T2 mapping of the median nerve in patients with carpal tunnel syndrome and healthy volunteers
Author(s) -
Maeda Atsushi,
Suzuki Taku,
Hayakawa Katsuhiko,
Funahashi Takuya,
Kuroiwa Takashi,
Fujita Nobuyuki
Publication year - 2021
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.27205
Subject(s) - carpal tunnel syndrome , median nerve , carpal tunnel , medicine , forearm , carpal tunnel release , wrist , nerve conduction study , nerve conduction , anatomy , nuclear medicine , surgery
We investigated the changes in MRI T2 mapping values in subjects with carpal tunnel syndrome (CTS) compared to healthy controls. Methods We enrolled 71 patients with CTS and 26 healthy controls. Median nerve T2 values were measured at the distal carpal tunnel, hamate bone, proximal carpal tunnel, and forearm levels. These were compared between patients and controls and correlated with median nerve cross‐sectional area (CSA) and nerve conduction measurements. Results The mean T2 values at the proximal carpal tunnel levels were higher in the CTS group (56.7 ms) than in the control group (51.2 ms, P = .02) and also were higher than at the distal carpal tunnel (51.0 ms, P < .001) and forearm levels (47.6 ms, P < .001). T2 values were not significantly associated with CSA or nerve conduction measurements. Discussion T2 mapping of the carpal tunnel provides qualitative information on median nerve pathology but does not reflect CTS severity.