Development of the articulatory simulation method using the computational fluid dynamics aiming to elucidate pathogenesis of the articulatory disorder
| Project/Area Number |
18H03001
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 57060:Surgical dentistry-related
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| Research Institution | Yamaguchi University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
小池 正紘 山口大学, 医学部附属病院, 診療放射・エックス線技師長 (20770283)
中野 旬之 大阪医科薬科大学, 医学部, 講師 (60511730)
梅田 浩嗣 山口大学, 医学部附属病院, 助教 (90610618)
岩永 秀幸 山口大学, 医学部附属病院, 診療放射・エックス線技師長 (70827112)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Project Status |
Completed (Fiscal Year 2021)
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| Budget Amount *help |
¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
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| Keywords | 流体音響解析 / 構音のシミュレーション / 構音障害 / 声道モデル / 境界要素法 / 構音運動 / 音響シミュレーション |
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| Outline of Final Research Achievements |
The purpose of this study was to establish the method that could simulate the association with the shapes of the articulator and the sounds produced from it exactly. We created the vocal tract models from CT data acquired during sustained phonation of the vowel /a/, applied the boundary element method, and then obtained the frequency response curves. From comparison with the actual sounds and the sounds generated using the solid models, it was found that the vowel /a/ could be simulated with high validity. Subsequently, we made the vocal tract models at sustained phonation of the friction consonant /∫/ similar to the above-mentioned method. After extraction of the sound sources calculated with the computational fluid dynamics (CFD), we could simulate a frequency characteristic similar to the results of the actual sounds and the actual measurements by applying the acoustic analysis with the quadrupole source.
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| Academic Significance and Societal Importance of the Research Achievements |
口蓋裂言語臨床において、音声・言語は主として言語聴覚士により主観的に評価され、言語訓練法や二次手術の適応基準等は術者の経験と勘に基づいて決定されている。過去の研究アプローチは産生された結果の解析であり、そのプロセスである構音器官の形状に基づいて直接解析するものではないために、構音障害の発生機序はブラックボックスのままであった。本研究により提案された構音器官の形状と産生される音のシミュレーション法により、このブラックボックス解明への糸口が見つかった。
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Report
(5 results)
Research Products
(57 results)
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[Journal Article] The Elental elemental diet for against chemoradiotherapy-induced oral mucositis: a prospective study in patients with oral squamous cell carcinoma.2019
Author(s)
Koji Harada, Haruyasu Minami, Tarannum Ferdous, Yoshiaki Kato, Hirotsugu Umeda, Daiju Horinaga, Kenichiro Uchida, Sung Chul Park, Hideki Hanazawa, Shotaro Takahashi, Misaki Ohota, Hiromi Matsumoto, Junko Maruta, Hiromi Kakutani, Sanae Aritomi, Keiko Shibuya, Katsuaki Mishima
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Journal Title
Mol Clin Oncol.
Volume: 10
Pages: 159-167
DOI
Related Report
Peer Reviewed / Open Access
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[Book] 口腔外科学 第4版2020
Author(s)
三島克章（白砂兼光・古郷幹彦 編著）
Total Pages
862
Publisher
医歯薬出版
ISBN
9784263458433
Related Report
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