Quantitative and objective evaluation of vocal cord function.
Objective and quantitative evaluation of vocal cord function is a goal that has been difficult for voice clinicians to obtain. To be useful as a clinical screening tool it must be easy to perform, it must produce numerical storable data, it must have a high degree of accuracy, and it must be cost-effective. The results of this study have shown that using the perturbation factor and the equipment described, a successful rate of greater than 93% can be obtained in evaluating vocal cord dysfunction. The results further indicate that this equipment can be used much in the same way as an audiogram to follow-up and clinically evaluate on an objective basis the function of the vocal cords.
D004568:Electrodiagnosis; D006685:Hoarseness / Q000503:physiopathology; D006801:Humans; D010699:Phonation; D014827:Vocal Cords / Q000503:physiopathology*; D014832:Voice Disorders / Q000503:physiopathology*