• Neurol. Sci. · Jan 2021

    Ultrasonography of cervical nerve roots: cross-sectional reference values according to age.

    • Marta Drake-Pérez, Ana L Pelayo-Negro, José R Sánchez-de la Torre, José Berciano, and Elena Gallardo.
    • Service of Radiology, University Hospital "Marqués de Valdecilla (IDIVAL)", 39008, Santander, Spain. drake.marta@gmail.com.
    • Neurol. Sci. 2021 Jan 1; 42 (1): 215-223.

    IntroductionThe aim of this study is to describe the normal cross-sectional area (CSA) and appearance of cervical nerve roots in ultrasound, correlating it to age and other patient somatic parameters.MethodsOne hundred healthy volunteers were included. We aimed to achieve uniform representation throughout all age groups. Ultrasound of the cervical nerve roots was performed bilaterally. CSA and margins description were obtained.ResultsC5 nerve, 8.32 ± 2.30; C6 nerve, 11.88 ± 3.36; C7 nerve, 12.79 ± 3.85; C8 nerve, 11.20 ± 3.45. Significant correlation between CSA and age was demonstrated, but not for body mass index. Blurred margins were present in up to 23.71% cervical nerves, more frequently in older individuals and in C7 nerve.DiscussionIf ultrasound morphology of cervical nerve roots is used as a diagnostic parameter, the normal range of CSA values and percentage of blurred margins according to age should be considered.

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