P1-5-02. Evaluation of facial muscle elasticity with real-time tissue elastography – Examination in cases with synkinesis following peripheral facial nerve paresis

The study was performed to clarify the relationship between facial muscle elasticity measured by real-time tissue elastography (RTE) and the clinical phenotypes of peripheral facial nerve paresis (PFP). We examined the orbicularis oculi muscles of nine PFP patients with synkinesis by RTE. The strain ratio (SR) of the muscle to an acoustic coupler was calculated as an index of muscle elasticity. We also recorded and integrated electromyograms of left and right orbicularis oculi muscles, respectively.

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