High-frequency ultrasound as an adjunct to neural electrophysiology: Evaluation and prognosis of Bell's palsy

Li,Shuo; Guo,Rui‑Jun; Liang,Xiao‑Ning; Wu,Yue; Cao,Wen; Zhang,Zhen‑Ping; Zhao,Wei; Liang,Hai‑Dong

doi:10.3892/etm.2015.2878

High-frequency ultrasound as an adjunct to neural electrophysiology: Evaluation and prognosis of Bell's palsy

Authors:
- Shuo Li
- Rui‑Jun Guo
- Xiao‑Ning Liang
- Yue Wu
- Wen Cao
- Zhen‑Ping Zhang
- Wei Zhao
- Hai‑Dong Liang
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Affiliations: Department of Ultrasound Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China, Department of Neurology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, P.R. China, The First Hospital of Shijiazhuang City, Shijiazhuang, Hebei 050011, P.R. China, Institute of Medical Engineering and Medical Physics, School of Engineering, Cardiff University, Cardiff CF24 3AA, Wales, UK
Published online on: November 18, 2015 https://doi.org/10.3892/etm.2015.2878
Pages: 77-82
Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Bell's palsy is a form of temporary facial nerve paralysis that occurs primarily in young adults. Previously, various methods were used to assess outcomes in facial nerve disease. The aim of the present study was to characterize the main branches of the normal and abnormal facial nerve using high‑frequency ultrasonography (HFUS). A total of 104 healthy volunteers, 40 patients with acute onset of Bell's palsy and 30 patients who underwent 3‑month routine therapy for Bell's palsy disease were included in the study. The healthy volunteers and patients were selected for HFUS examination and VII nerve conduction. The results showed significant differences in nerve diameter, echogenicity, delitescence and amplitude in different groups. Statistically significant correlations were identified for severity grading in one of the experimental groups during HFUS examinations. In conclusion, HFUS as a complementary technique paired with neural electrophysiology may establish the normal values of facial nerve. Additionally, HFUS was beneficial in the process of evaluation and prognosis of Bell's palsy disease.

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