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Quantitative and objective evaluation of vocal cord function.

E Rontal, M Rontal, H J Jacob

    The Annals of Otology, Rhinology, and Laryngology
    |September 1, 1983
    PubMed
    Summary
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    This study introduces a cost-effective method using the perturbation factor to objectively evaluate vocal cord function with over 93% accuracy. This technique provides storable data for clinical screening and follow-up of vocal cord dysfunction.

    Area of Science:

    • Laryngology
    • Speech-Language Pathology
    • Biomedical Engineering

    Background:

    • Objective vocal cord function evaluation is challenging for clinicians.
    • A clinical screening tool requires ease of use, numerical data, accuracy, and cost-effectiveness.

    Purpose of the Study:

    • To develop and validate a method for objective and quantitative vocal cord function evaluation.
    • To assess the feasibility of using this method as a clinical screening tool.

    Main Methods:

    • Utilized the perturbation factor for vocal cord analysis.
    • Employed specific equipment for data acquisition and evaluation.

    Main Results:

    • Achieved a successful evaluation rate exceeding 93% for vocal cord dysfunction.

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  • Demonstrated the potential for numerical data generation and storage.

    • Conclusions:

    • The described equipment and perturbation factor method offer a highly accurate (>93%) and cost-effective approach to assessing vocal cord function.
    • This method can serve as a valuable clinical screening tool, similar to an audiogram, for objective follow-up and evaluation of vocal cord health.