2026-03-10T04:19:52Z https://ir.kagoshima-u.ac.jp/oai

oai:ir.kagoshima-u.ac.jp:00015176 2026-03-03T15:00:50Z 57:86

Relationship between lip motion detected with a compact 3D camera and swallowing dynamics during bolus flow swallowing in Japanese elderly men 日本人高齢男性の一回嚥下時における口唇動作と嚥下動態の関係 : 小型3Dカメラの応用 山本, 祐士 ヤマモト, ユウシ Yamamoto, Yushi open access 3D camera Lip Mouth Swallowing Videofluoroscopy 博士論文全文, 博士論文要旨, 最終試験結果の要旨, 論文審査の要旨 Clinical application of a swallowing function evaluation system that is minimally invasive and enables an objective evaluation is necessary. We constructed a system that can synchronise and analyse lip motion with a three-dimensional (3D) camera and swallowing dynamics with videofluoroscopy (VF) and clarified the relationship between lip movement and swallowing dynamics. A compact 3D camera was adapted to Microsoft XBox One Kinect Sensor®. We examined Kinect's accuracy and repeatability and analysed the highest measurement accuracy and repeatability of the distance between anguli oris muscles. The constructed system simultaneously measured, synchronised and analysed lip motion by Kinect and swallowing dynamics by VF. Fourteen elderly men without dysphagia were included. Barium turbid solution (5, 10, 15 and 20 mL) was used for swallowing. Measurement parameters were the 3D distance between angulus oris displacement (TDDD), swallowing quantity (SQ), oral transit time (OTT), stage transit duration (STD), pharyngeal transit time (PTT) and total swallowing duration (TSD). Statistical analyses were performed. The measurement accuracy and reproducibility were optimum within a 10° horizontal imaging angle at a 120-cm measurement distance. SQ, TDDD, OTT, STD, PTT and TSD showed significant differences, and correlation was found between TDDD and OTT. SQ affected TDDD, OTT, STD, PTT and TSD; OTT could be predicted from TDDD. Improvement in the system and analysis method was considered to enable prediction of swallowing dynamics from body surface movement of the head and neck, including realisation of measurement conditions with higher precision and reproducibility, and from lip motion. Yushi Yamamoto, Hideo Sato, Hisako Kanada, Yoichiro Iwashita, Makiko Hashiguchi, Youichi Yamasaki Relationship between lip motion detected with a compact 3D camera and swallowing dynamics during bolus flow swallowing in Japanese elderly men Journal of Oral Rehabilitation 47(4) 2020 p.449-459 https://doi.org/10.1111/joor.12916 John Wiley & Sons Ltd 鹿児島大学 eng doctoral thesis VoR http://hdl.handle.net/10232/00031070 https://ir.kagoshima-u.ac.jp/records/15176 甲総研第546号 博士(歯学) Doctor of Philosophy in Dental Science 2020-03-25 17701 鹿児島大学 https://ir.kagoshima-u.ac.jp/record/15176/files/Diss_山本 祐士_ISK546_2019.pdf application/pdf 247.7 kB 2021-07-02 2020-03-06 https://ir.kagoshima-u.ac.jp/record/15176/files/Abstract_山本 祐士_4516800187_2019.pdf application/pdf 105.2 kB 2021-07-02 2020-03-06 https://ir.kagoshima-u.ac.jp/record/15176/files/Result_Yamamoto_Yushi_isk_546.pdf application/pdf 186.3 kB 2020-05-21 2020-03-06 https://ir.kagoshima-u.ac.jp/record/15176/files/Comments_Yamamoto_Yushi_isk_546.pdf application/pdf 93.7 kB 2020-05-21 2020-03-06