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Drs Terrence Trapp and Gerald Berke reported their work using photoglottography and electroglottography in the canine model with simulated recurrent and superior laryngeal nerve paralysis. Their presentation was before the Western Section meeting of the Triological Society, San Diego, January 1988. These two methods of photoelectric measurements of vocal cord motion are relatively noninvasive and provide detailed information about vocal cord vibration. They identified specific wave forms that can be used in differentiating normal vs flaccid states. Potential human applications were also discussed.
CALCATERRA TC. Photoelectric Measurement of Laryngeal Paralyses Correlated With Videostroboscopy. Arch Otolaryngol Head Neck Surg. 1988;114(4):371. doi:10.1001/archotol.1988.01860160013001
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