Artificial neural network classification of pharyngeal high-resolution manometry with impedance data

Matthew Hoffman, Jason Mielens, Taher Omari, Nathalie Rommel, Jack Jiang, Timothy McCulloch

    Research output: Contribution to journalArticle

    21 Citations (Scopus)

    Abstract

    Objectives/Hypothesis: To use classification algorithms to classify swallows as safe, penetration, or aspiration based on measurements obtained from pharyngeal high-resolution manometry (HRM) with impedance. Study Design: Case series evaluating new method of data analysis. Methods: Multilayer perceptron, an artificial neural network (ANN), was evaluated for its ability to classify swallows as safe, penetration, or aspiration. Data were collected from 25 disordered subjects swallowing 5- or 10-mL boluses. Following extraction of relevant parameters, a subset of the data was used to train the models, and the remaining swallows were then independently classified by the ANN. Results: A classification accuracy of 89.4 ± 2.4% was achieved when including all parameters. Including only manometry-related parameters yielded a classification accuracy of 85.0 ± 6.0%, whereas including only impedance-related parameters yielded a classification accuracy of 76.0 ± 4.9%. Receiver operating characteristic analysis yielded areas under the curve of 0.8912 for safe, 0.8187 for aspiration, and 0.8014 for penetration. Conclusions: Classification models show high accuracy in classifying swallows from dysphagic patients as safe or unsafe. HRM-impedance with ANN represents one method that could be used clinically to screen for patients at risk for penetration or aspiration. Laryngoscope, 2013

    Original languageEnglish
    Pages (from-to)713-720
    Number of pages8
    JournalLaryngoscope
    Volume123
    Issue number3
    DOIs
    Publication statusPublished - Mar 2013

    Keywords

    • Artificial neural network
    • aspiration
    • classification model
    • dysphagia
    • high-resolution manometry
    • impedance
    • Level of Evidence: 4

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