P 25 Reference values for the cross-sectional area of the vagus nerve in healthy subjects – a high-resolution ultrasound study

Examination of peripheral nerves with high-resolution ultrasound (HRUS) now routinely complements electrophysiological studies in various diseases. Prerequisite for nerve HRUS are well-defined reference values. Notably, reference values of the vagus nerve (VN) are varying (Cartwright, 2008; López-Hernández, 2014) and, overall, poorly studied. Aim of this study was to assess reference values for the VN as well as to examine inter-rater and intra-rater reliability and inter-ultrasound system agreement.

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