Sonographic characteristics of the facial nerve in healthy volunteers

Muscle & Nerve
Eman A Tawfik

Abstract

Peripheral nerve ultrasound has become an effective imaging technique. However, imaging of cranial nerves, especially in healthy volunteers, has received minimal attention. The objectives of this study were to describe the sonographic characteristics of the facial nerve and to establish average values of its diameter. The extra-cranial part of the facial nerve was scanned bilaterally along its longitudinal axis inside the parotid gland using a 13-MHz probe in 50 healthy adults. The diameter was measured at the nerve's thickest region. The facial nerve appeared as a thin, tubular, hypoechoic structure inside the parotid gland. The mean facial nerve diameter was 0.5 ± 0.1 mm, and the mean side-to-side difference in diameter was 0.1 ± 0.1 mm. The average facial nerve diameter values may provide help with identification of nerve abnormalities using ultrasound. Muscle Nerve 52: 767-771, 2015.

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Jan 30, 2018·Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova·A V KlimkinN V Skripchenko
Nov 12, 2017·European Archives of Oto-rhino-laryngology : Official Journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : Affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery·Hannes WegscheiderBernhard Moriggl
Jan 30, 2021·The British Journal of Radiology·Fréderic Van der CruyssenJan Casselman

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