Effects of vocal nodules on acoustic characteristics of voice in children : an acoustic analysis of voice

• Material Type: 博士論文
• Title: Effects of vocal nodules on acoustic characteristics of voice in children : an acoustic analysis of voice
• Author/Editor: Aoki, Toshihito; Takeyama, Takaaki; Sakamoto, Yuki; Shimada, Aki; Kondo, Eiji; Nakano, Seiichi; Fukuda, Junya; Azuma, Takahiro; Sato, Go; Kitamura, Yoshiaki; Hosokawa, Kiyohito; Udaka, Jiro; Takeda, Noriaki
• Author Heading: Aoki, Toshihito; Takeyama, Takaaki; Sakamoto, Yuki; Shimada, Aki; Kondo, Eiji; Nakano, Seiichi; Fukuda, Junya; Azuma, Takahiro; Sato, Go; Kitamura, Yoshiaki; Hosokawa, Kiyohito; Udaka, Jiro; Takeda, Noriaki
• Publication, Distribution, etc.: Tokushima University Faculty of Medicine
• Publication Date: 2021-08
• Publication Date (W3CDTF): 2021-08
• Alternative Title: 声帯結節が小児の音声の音響的特徴に与える影響 : 音声の音響分析; Acoustic characteristics of vocal nodules
• Periodical title: The Journal of Medical Investigation
• No. or year of volume/issue: 68 3-4
• Volume: 68
• Issue: 3-4
• Pages: 276-279
• ISSN (Periodical Title): ISSN : 1349-6867; ISSN : 1343-1420
• Degree grantor/type: 徳島大学
• Date Granted: 2022-03-23
• Dissertation Number: 甲第3590号
• Degree Type: 博士（医学）
• Text Language Code: eng
• Subject Heading: vocal nodules; pediatric patients; dysphonia; acoustic analysis of voice
• Target Audience: 一般
• Note (General): Objective : In the present study, an attempt was made to evaluate the acoustic characteristics of voice in pediatric patients with vocal nodules using acoustic analysis of voice. Methods : Thirty-five pediatric patients with vocal nodules and 32 control children without dysphonia were enrolled in this study. Their voice samples were analyzed using the Multi-Dimensional Voice Program. Acoustic parameters of voice, such as pitch period perturbation quotient (PPQ), amplitude perturbation quotient (APQ), and noise-to-harmonic ratio (NHR), were measured. Results : In phonation at a loudness of over 80 dBA, the PPQ, APQ, and NHR values of the voice significantly increased in children with vocal nodules than in the control children without dysphonia. The sensitivities and specificities of PPQ, APQ, and NHR for prediction of vocal nodules in children were 62.86% and 84.38%, 74.29% and 75.00%, and 31.43% and 93.75%, respectively. Discussion : The present findings suggest that vocal nodules affect vocal fold vibration, resulting in impaired control of pitch and loudness leading to increased noise components. NHR could be used to evaluate the efficacy of treatment, such as voice rehabilitation, in pediatric patients with vocal nodules because of its high specificity for prediction of vocal nodules in children.
• Format (IMT): application/pdf
• Access Restrictions: インターネット公開
• Related Material (DOI): 10.2152/jmi.68.276
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 徳島大学 : 徳島大学機関リポジトリ

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http://repo.lib.tokushima-u.ac.jp/files/public/11/116494/20220408093211144839/k3590_abstract_review.pdf fulltext

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