{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,3,30]],"date-time":"2024-03-30T01:11:01Z","timestamp":1711761061028},"reference-count":20,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"\nBackground: <\/jats:title>\nCarpal tunnel syndrome (CTS) is diagnosed based on neurological, electrophysiology, and radiological findings. Due to the technical development of magnetic resonance imaging (MRI), the median nerve is evaluated with several MRI protocols. However, diffusion tensor imaging (DTI) combined with a dual-echo steady-state (DESS) protocol is not frequently used to evaluate the median nerve of CTS. This study aimed to evaluate the median nerve in the carpal tunnel using DTI combined with a DESS protocol.<\/jats:p>\n<\/jats:sec>\n\nMethods: <\/jats:title>\nFive healthy volunteers and seven patients with CTS were enrolled. The patients underwent MRI for CTS pre- and post-operatively. The median nerve was evaluated using a 3-T MRI scanner. The parameters of the DESS protocol were as follows: Repetition time (TR)\/echo time (TE) = 10.83\/3.32 ms, slice thickness = 0.45 mm, field of view (FoV) = 350 \u00d7 253 \u00d7 350 mm, and 3D voxel size = 0.5 \u00d7 0.5 \u00d70.4 mm. The parameters of the DTI sequence were as follows: TR\/TE = 4000\/86 ms, slice thickness = 3 mm, FoV = 160 \u00d7 993 \u00d7 90 mm, 3D voxel size = 1.2 \u00d7 1.2 \u00d73.0 mm, and b value = 0.1000 s\/mm2<\/jats:sup>. The apparent diffusion coefficient (ADC) and fractional anisotropy (FA) values of the median nerve were statistically analyzed. Statistical significance was set at P<\/jats:italic>< 0.05.<\/jats:p>\n<\/jats:sec>\n\nResults: <\/jats:title>\nThe FA value of healthy volunteers was 0.576 \u00b1 0.058, while those of the patients were 0.357 \u00b1 0.094 and 0.395 \u00b1 0.062 pre-and post-operatively, respectively. Statistically significant differences were identified between the FA values of healthy volunteers and pre-operative\/post-operative patients. The ADC values of healthy volunteers and pre-operative patients were 0.931 \u00b1 0.096 and 1.26 \u00b1 0.282 (10-3<\/jats:sup> mm2<\/jats:sup>\/s), respectively (P<\/jats:italic>< 0.05).<\/jats:p>\n<\/jats:sec>\n\nConclusion: <\/jats:title>\nThis MRI protocol may be useful for evaluating the median nerve in the carpal tunnel.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_156_2024","type":"journal-article","created":{"date-parts":[[2024,3,29]],"date-time":"2024-03-29T07:23:34Z","timestamp":1711697014000},"page":"110","update-policy":"http:\/\/dx.doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Diffusion tensor imaging combined with the dual-echo steady-state (DESS) protocol for the evaluation of the median nerve in the carpal tunnel: A preliminary study"],"prefix":"10.25259","volume":"15","author":[{"given":"Yoshinori","family":"Maki","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Hikone Chuo Hospital, Hikone, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Motohiro","family":"Takayama","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Hikone Chuo Hospital, Hikone, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tsuyoshi","family":"Okawa","sequence":"additional","affiliation":[{"name":"Department of Radiology, Fujieda Municipal General Hospital, Fujieda, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akio","family":"Goda","sequence":"additional","affiliation":[{"name":"Department of Physical Therapy, Faculty of Health and Medical Sciences, Hokuriku University, Kanazawa, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akinori","family":"Miyakoshi","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Shizuoka General Hospital, Shizuoka, 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