カテゴリ: 論文誌(論文単位)グループ名: 【C】電子・情報・システム部門発行日: 2019/05/01タイトル(英語): Classification of Esophageal and Bolus Movements for Evaluation of Swallowing Function by Ultrasound Video Processing Using Optical Flow and Stable Extremal Region Method著者名: 鈴木 裕（山梨大学 工学部 情報メカトロニクス工学科），初鹿 恭介（山梨大学 医学部 医学科 耳鼻咽喉科・頭頸部外科），増山 敬祐（山梨大学 医学部 医学科 耳鼻咽喉科・頭頸部外科），阪田 治（東京理科大学 工学部 電気工学科），谷本 守正（山梨大学 生命環境学部 地域食物科学科），森澤 正之（山梨大学 工学部 情報メカトロニクス工学科）著者名(英語): Yutaka Suzuki (Faculty of Engineering, University of Yamanashi), Kyosuke Hatsushika (Faculty of Medicine, University of Yamanashi), Keisuke Masuyama (Faculty of Medicine, University of Yamanashi), Osamu Sakata (Faculty of Engineering, Tokyo University of Science), Morimasa Tanimoto (Faculty of Life and Environmental Science, University of Yamanashi), Masayuki Morisawa (Faculty of Engineering, University of Yamanashi)キーワード: 超音波動画像，嚥下，オプティカルフロー，食道，食塊 ultrasound video，swallowing，optical flow，esophagus，bolus要約(英語): VideoEndoscopy (VE) and VideoFluorography (VF) are the classic inspection methods used for evaluating the function of swallowing, but are disadvantageous in that they are invasive. Therefore, we have proposed a noninvasive method that uses pharyngeal ultrasound videos to estimate the internal flow characteristics of foods and evaluates the swallowing function level quantitatively. We are proposing a new method that combines optical flow with Maximally Stable Extremal Regions (MSER) to extract the movement velocity and position of esophagus and bolus. The results showed that the movement velocity could be used as an indicator to quantify the internal flow characteristics of foods. The displacement of the esophagus indicates the esophageal opening; this could be used as an indicator to evaluate the swallowing. In this study, we confirmed that a classification of esophageal and bolus movements should be performed automatically by the developed method to decrease the evaluation time.本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.139 No.5 （2019） 特集Ⅰ：電子・情報・システム技術とものづくり 特集Ⅱ：生体を診る・解く・支える技術本誌掲載ページ: 603-608 p原稿種別: 論文／日本語電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/139/5/139_603/_article/-char/ja/
