アクセス数 : ?
ダウンロード数 : ?
ID 116494
タイトル別表記
Acoustic characteristics of vocal nodules
著者
Aoki, Toshihito Tokushima University|Udaka ENT Clinic
Takeyama, Takaaki Tokushima University|Udaka ENT Clinic
Sakamoto, Yuki Tokushima University
島田, 亜紀 Tokushima University
中野, 誠一 Tokushima University
Hosokawa, Kiyohito Osaka University
Udaka, Jiro Tokushima University|Udaka ENT Clinic
キーワード
vocal nodules
pediatric patients
dysphonia
acoustic analysis of voice
資料タイプ
学術雑誌論文
抄録
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.
掲載誌名
The Journal of Medical Investigation
ISSN
13496867
13431420
cat書誌ID
AA11166929
出版者
Tokushima University Faculty of Medicine
68
3-4
開始ページ
276
終了ページ
279
並び順
276
発行日
2021-08
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
病院
医学系