Ultrasound to Detect Vocal Fold Movement in Neurological Disease

This study aims to investigate the accuracy and viability of transcutaneous laryngeal ultrasound (US) in detecting impairments of vocal fold movement in people with neurological disorders. The accuracy and viability of laryngeal US compared with reference standard fibreoptic nasendoscopic examination (FNE) will be evaluated. The study also includes measurements of clinician reliability in US image acquisition and interpretation, and assess the acceptability of US assessment to people with neurological disorders. Data will be used to assess the ability of US to detect other laryngeal pathology, and to calculate the sample size required for a validation study.