2016
DOI: 10.3988/jcn.2016.12.3.289
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Diagnostic Significance of Ultrasonographic Measurements and Median-Ulnar Ratio in Carpal Tunnel Syndrome: Correlation with Nerve Conduction Studies

Abstract: Background and PurposeWe determined the reliability of ultrasonography (US) measurements for diagnosing carpal tunnel syndrome (CTS) and their correlation with symptom duration and electrophysiology findings. We determined whether the ratio of the median-to-ulnar cross-sectional areas (CSAs) can support CTS diagnoses.MethodsThe pisiform CSA (CSApisiform), swelling ratio (SR), palmar bowing, and CSApisiform/ulnar CSA (CSAulnar) measurements made in two subgroups of CTS patients (having sensory affection alone o… Show more

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Cited by 24 publications
(39 citation statements)
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“…In clinical practice, the cross‐sectional area is the most popular and commonly used parameter among the US indicators for evaluation of morphologic changes or nerve thickening in the median nerve. Previous studies demonstrated that the cross‐sectional area had significant diagnostic value in CTS and also could be used in the follow‐up after treatment . In contrast to some studies that indicated no significant difference in the cross‐sectional area among the severity grades of CTS, we observed that cross‐sectional area values in moderate CTS were significantly higher than those in mild CTS ( P = .01) .…”
Section: Discussioncontrasting
confidence: 94%
“…In clinical practice, the cross‐sectional area is the most popular and commonly used parameter among the US indicators for evaluation of morphologic changes or nerve thickening in the median nerve. Previous studies demonstrated that the cross‐sectional area had significant diagnostic value in CTS and also could be used in the follow‐up after treatment . In contrast to some studies that indicated no significant difference in the cross‐sectional area among the severity grades of CTS, we observed that cross‐sectional area values in moderate CTS were significantly higher than those in mild CTS ( P = .01) .…”
Section: Discussioncontrasting
confidence: 94%
“…The measurement we used to estimate the possibility of CTS by ultrasound was an area greater than 10 mm 2 , which was obtained in the transverse plane at the level of the pisiform and scaphoid bones. 35,50 In various control exams that were previously performed on several patients in the study, we observed increases in the area of these nerves that corresponded to the clinical worsening or maintenance of inflammatory and neurological symptoms. We believe that the thickening of the median nerve may be associated with more severe symptoms and may also persist for a longer period, regardless of clinical improvement, but this must be evaluated in prospective studies.…”
Section: Discussionmentioning
confidence: 65%
“…In our series, we observed a high frequency of median nerve thickening, which is compatible with the symptoms of CTS (pain, paresthesia, and loss of strength). The measurement we used to estimate the possibility of CTS by ultrasound was an area greater than 10 mm 2 , which was obtained in the transverse plane at the level of the pisiform and scaphoid bones . In various control exams that were previously performed on several patients in the study, we observed increases in the area of these nerves that corresponded to the clinical worsening or maintenance of inflammatory and neurological symptoms.…”
Section: Discussionmentioning
confidence: 97%
“…[16][17][18][19] The aim of the present study is to assess the utility of HRUS of the MN in the diagnosis and grading of CTS in Egyptian patients. [16][17][18][19] The aim of the present study is to assess the utility of HRUS of the MN in the diagnosis and grading of CTS in Egyptian patients.…”
Section: Discussionmentioning
confidence: 99%