Cross‐sectional area reference values of nerves in the lower extremities using ultrasonography

Seok, Hung Youl; Jang, Ji‐Wook; Won, Sun Jae; Yoon, Joon Shik; Park, Kyung Seok; Kim, Byung Jo

doi:10.1002/mus.24209

Cited by 48 publications

(89 citation statements)

References 32 publications

(69 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our study, mean value of ΔSx–Asx was 4.83±2.83 mm 2 and ΔSx–Asx of 1.7 mm 2 as cutoff value yielded a sensitivity of 83.3% and a specificity 96.7%. In agreement with our findings, previous studies reported 3.2 mm 2 and 4.9 mm 2 upper limit of side-to-side difference, respectively; but data were obtained from healthy subjects and the validity or diagnostic accuracy were not assessed [69]. …”

Section: Discussionsupporting

confidence: 91%

“…Some previous studies described upper limit value of the side-to-side difference [6922]; in addition, one study showed no significant correlation with subjects' baseline demographic factors including age, height, weight, and BMI in CF nerve [9]. Therefore, these absolute values could be a useful reference for detection of nerve pathology in people with different age and body index [691022]. In our study, mean value of ΔSx–Asx was 4.83±2.83 mm 2 and ΔSx–Asx of 1.7 mm 2 as cutoff value yielded a sensitivity of 83.3% and a specificity 96.7%.…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Measurement of cross-sectional area (CSA) of the nerve is the most widely accepted and reliable method for the diagnosis of nerve disorders [68910]. Thus, determination of reference value of CSA is crucial to identification of nerve pathology and proper diagnosis [69]. However, there are few systemic studies and no standard consensus on ultrasonographic measurements and diagnostic cutoff value for the CFN at the FH [169101112].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, determination of reference value of CSA is crucial to identification of nerve pathology and proper diagnosis [69]. However, there are few systemic studies and no standard consensus on ultrasonographic measurements and diagnostic cutoff value for the CFN at the FH [169101112]. Several studies reported ultrasonographic findings of patients with foot drop and demonstrated the value of ultrasonography as a diagnostic tool; however, they included small number of patients [11112].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Diagnostic Cutoff Value for Ultrasonography of the Common Fibular Neuropathy at the Fibular Head

et al. 2016

Self Cite

View full text Add to dashboard Cite

ObjectiveTo establish the diagnostic cutoff value of ultrasonographic measurement for common fibular neuropathy (CFN) at the fibular head (FH).MethodsTwenty patients with electrodiagnostically diagnosed CFN at the FH and 30 healthy controls were included in the study. The cross-sectional area (CSA) of sciatic nerve at mid-thigh level, common fibular nerve at popliteal fossa (PF), and common fibular (CF) nerve at FH were measured. Additionally, the difference of CF nerve CSA at the FH between symptomatic side and asymptomatic side (ΔSx–Asx), the ratio of CF nerve CSA at FH to at PF (FH/PF), and the ratio of CF nerve CSA at the FH symptomatic side to asymptomatic side (Ratio Sx–Asx) were calculated.ResultsCSA at the FH, FH/PF, ΔSx–Asx, and Ratio Sx–Asx showed significant differences between the patient and control groups. The cutoff value for diagnosing CFN at the FH was 11.7 mm2 for the CSA at the FH (sensitivity 85.0%, specificity 90.0%), 1.70 mm2 for the ΔSx–Asx (sensitivity 83.3%, specificity 97.0%), 1.11 for the FH/PF (sensitivity 47.1%, specificity 93.3%), and 1.24 for the Ratio Sx–Asx (sensitivity 72.2%, specificity 96.7%).ConclusionThe ultrasonographic measurement and cutoff value could be a valuable reference in diagnosing CFN at the FH and improving diagnostic reliability and efficacy.

show abstract

Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Diagnostic Cutoff Value for Ultrasonography of the Common Fibular Neuropathy at the Fibular Head

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

Median Nerve Shear Wave Elastography Is Associated With the Neurophysiological Severity of Carpal Tunnel Syndrome

Martikkala,

Pemmari,

Himanen

et al. 2024

J of Ultrasound Medicine

View full text Add to dashboard Cite

ObjectivesThis study examines the associations between the median nerve (MN) shear wave elastography (SWE), the MN cross‐sectional area (CSA), patient's symptoms, and the neurophysiological severity of carpal tunnel syndrome (CTS). The most appropriate site to perform SWE was also tested.MethodsThis prospective study comprised 86 wrists of 47 consecutive patients who volunteered for MN ultrasound after an electrodiagnostic study. The neurophysiological severity of CTS was assessed according to the results of a nerve conduction study (NCS). The MN CSA was measured at the carpal tunnel inlet (wCSA) and the forearm (fCSA). SWE was performed on the MN in a longitudinal orientation at the wrist crease (wSWE), at the forearm (fSWE), and within the carpal tunnel (tSWE).ResultsThe wCSA and wSWE correlated positively with the neurophysiological severity of CTS (r = .619, P < .001; r = .582, P < .001, respectively). The optimal cut‐off values to discriminate the groups with normal NCS and with findings indicating CTS were 10.5 mm2 for the wCSA and 4.12 m/s for the wSWE. With these cut‐off values, wCSA had a sensitivity of 80% and specificity of 87% and wSWE a sensitivity of 88% and specificity of 76%. Neither tSWE nor fSWE correlated with the neurophysiological severity of CTS or differed between NCS negative and positive groups (P = .429, P = .736, respectively).ConclusionShear wave velocity in the MN at the carpal tunnel inlet increases in CTS and correlates to the neurophysiological CTS severity equivalently to CSA measured at the same site.

show abstract

Reference values for ultrasonograpy of peripheral nerves

et al. 2016

View full text Add to dashboard Cite

show abstract

Cross‐sectional area reference values of nerves in the lower extremities using ultrasonography

Abstract: The lower extremity nerve CSA values obtained in this study may provide normal reference values for the Asian population.

Cited by 48 publications

References 32 publications

Diagnostic Cutoff Value for Ultrasonography of the Common Fibular Neuropathy at the Fibular Head

Diagnostic Cutoff Value for Ultrasonography of the Common Fibular Neuropathy at the Fibular Head

Median Nerve Shear Wave Elastography Is Associated With the Neurophysiological Severity of Carpal Tunnel Syndrome

Reference values for ultrasonograpy of peripheral nerves

Contact Info

Product

Resources

About