High-resolution ultrasonography measurement of dimensions of median nerve at wrist in asymptomatic adults

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dc.contributor.authorParry, Arshed Hussainen_US
dc.contributor.authorWani, Abdul Haseeben_US
dc.contributor.authorChoh, Naseer Ahmaden_US
dc.contributor.authorGojwari, Tariq Ahmaden_US
dc.date.accessioned2019-12-02T10:10:18Z
dc.date.available2019-12-02T10:10:18Z
dc.date.issued2019
dc.description.abstractBackground: Ultrasonography (USG) is a cheap, easily available and painless modality for the diagnosis of carpal tunnel syndrome. However, the main sonographic criteria of cross sectional area (CSA) and flattening ratio (FR) of median nerve show a wide normal variation which warrants establishment of normal range of variability in the dimensions of median nerve in different populations. Objective: The main aim of this study was to calculate the mean cross sectional area (CSA) and flattening ratio (FR) of median nerve at wrist in asymptomatic adults. Materials and methods: This prospective observational study included asymptomatic adults visiting our tertiary care hospital for unrelated heath conditions with no symptoms to suggest carpal tunnel syndrome. Ultrasound examination of both wrists was carried out by high frequency linear array transducer with frequency of 10MHz with the arm in supine neutral position on LOGIQ P5 (GE Healthcare, Chicago, Illinois, USA) ultrasound machine. The cross-sectional area (CSA) and flattening ratio (FR) of the median nerve was measured at the level of carpal tunnel inlet and mean values with standard deviation were calculated. Results: Three hundred seventy six (376) wrists of 188 subjects were examined. 36 wrists were excluded owing to presence of anatomic variations of the median nerve in them. 340 wrists of 170 patients were included in the study. Mean cross sectional area of median nerve was 9.2 mm2 (±1.2). Arshed Hussain Parry, Abdul Haseeb Wani, Naseer Ahmad Choh, Tariq Ahmad Gojwari. High-resolution ultrasonography measurement of dimensions of median nerve at wrist in asymptomatic adults. IAIM, 2019; 6(4): 144-149. Page 145 Mean value of flattening ratio was 2.4 (±0.6). Mean CSA (9.26 ±1.2 mm2 ) and FR (2.41 ±0.6) of males was not significantly different from mean CSA (9.16 ±1.2 mm2 ) and FR (2.4±0.55) of females. However, mean CSA of right wrist (9.4 ±1.2 mm2 ) was significantly different from mean CSA of left wrist (9.10 ±1.1 mm2 ). Conclusion: We found a higher mean cross sectional area (CSA) of 9.2 mm2 of median nerve in our population. There was a significant difference in the cross sectional area of median nerve between right and left wrists. However, we did not find statistically significant difference in the CSA and FR between the males and females. Establishment of normative data for the dimensions of median nerve is essential for different populations given the wide range of variations in the dimensions of median nerveen_US
dc.identifier.affiliationsSenior Resident, Department of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, J&K, India, arshedparry@gmail.comen_US
dc.identifier.affiliationsSenior Resident, Department of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, J&K, Indiaen_US
dc.identifier.affiliationsMedical imaging technologist, Department of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, J&K, Indiaen_US
dc.identifier.affiliationsProfessor and HOD, Department of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, J&K, Indiaen_US
dc.identifier.citationParry Arshed Hussain, Wani Abdul Haseeb, Choh Naseer Ahmad, Gojwari Tariq Ahmad. High-resolution ultrasonography measurement of dimensions of median nerve at wrist in asymptomatic adults. International Archives of Integrated Medicine. 2019 Apr; 6(4): 144-149en_US
dc.identifier.issn2394-0026
dc.identifier.issn2394-0034
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/187153
dc.languageenen_US
dc.publisherEducational Society for Excellenceen_US
dc.relation.issuenumber4en_US
dc.relation.volume6en_US
dc.subjectHigh resolution ultrasonographyen_US
dc.subjectMedian nerveen_US
dc.subjectWristen_US
dc.subjectAsymptomaticen_US
dc.titleHigh-resolution ultrasonography measurement of dimensions of median nerve at wrist in asymptomatic adultsen_US
dc.typeJournal Articleen_US
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