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Development of orthognathic surgery assisted system with combined guide modeling technology and intraoperative holography.

Research Project

Project/Area Number 21K17123
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 57060:Surgical dentistry-related
Research InstitutionTokyo Dental College

Principal Investigator

koyachi masahide  東京歯科大学, 歯学部, 助教 (90875692)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsextended reality / virtual reality / mixed reality / orthognathic surgery / image guided surgery / CAD/CAM / Mixed Reality / head mounted display / Image-guided surgery / Extended Reality
Outline of Research at the Start

デジタル技術を用いた手術支援システム構築は、医療分野においてパラダイムシフトをおこしているといっても過言ではなく、口腔外科領域への応用が期待されている。
本申請では、CAD/CAM技術と複合現実Mixed Reality技術を搭載したヘッドマウントディスプレイをナビゲーションとして応用する。具体的には、術前ヴァーチャルオペレーションを術野に投影し、今までにない3次元的手術を行うことにより、顎矯正手術で求められるマイクロメートルオーダーの高精度手術の実現を目指す。以上より、術者の技術や経験の差に依存しない普遍的で、高い精度と安全性のある新規手術支援システムを確立する。

Outline of Final Research Achievements

In Le Fort I osteotomy, a type of surgery for jaw deformity, CAD/CAM technology is used as a method to reproduce preoperative virtual operations during surgery. However, it was difficult to confirm during surgery whether the surgery was being performed as planned. Therefore, we developed a method to perform surgery while wearing a head-mounted display equipped with mixed reality technology during surgery and superimposing a 3D hologram created from the preoperative virtual operations onto the surgical field. As a result, the reproducibility and accuracy of the preoperative plan when moving the maxilla was improved, and it was suggested that this could become a universal surgical procedure regardless of years of experience.

Academic Significance and Societal Importance of the Research Achievements

Le Fort I 型骨切り術による上顎骨移動・固定には、術前に印象採得した模型を用い作製するダブルスプリント法が用いられているが、作製過程における誤差が生じることに加え3次元的変化を十分に再現出来ず、術者の経験に依存している点が大きい。本研究の成果により、施設や経験年数に依存しない普遍的で高精度な手術が行えるようになった。さらに本技術は口腔外科領域のその他の手術にも応用することが可能であり、様々な手術を安全かつ高精度に行えることが期待できる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (17 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results) Presentation (10 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Book (1 results)

  • [Journal Article] Enhanced Precision in Genioplasty: class FormattedString { value: A Novel Intraoperative Spatial Repositioning Using Computer-Aided Design and Manufacturing Technology and a Holographic Mixed Reality Application }2023

    • Author(s)
      Koyachi Masahide、Sugahara Keisuke、Tachizawa Kotaro、Nishiyama Akihiro、Odaka Kento、Matsunaga Satoru、Sugimoto Maki、Tachiki Chie、Nishii Yasushi、Katakura Akira
    • Journal Title

      Journal of Clinical Medicine

      Volume: 12 Issue: 23 Pages: 7408-7408

    • DOI

      10.3390/jcm12237408

    • URL

      https://localhost/en/publications/92381704-37de-4147-889f-18baba86bf13

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mixed-reality and computer-aided design/computer-aided manufacturing technology for mandibular reconstruction: a case description2023

    • Author(s)
      Koyachi Masahide、Sugahara Keisuke、Tachizawa Kotaro、Nishiyama Akihiro、Odaka Kento、Matsunaga Satoru、Sugimoto Maki、Katakura Akira
    • Journal Title

      Quantitative Imaging in Medicine and Surgery

      Volume: 13 Issue: 6 Pages: 4050

    • DOI

      10.21037/qims-22-1118

    • URL

      https://pure.teikyo.jp/en/publications/4df450e1-8bb6-4509-9cf4-35acbad43154

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mixed reality for extraction of maxillary mesiodens2023

    • Author(s)
      Koyama Yu、Sugahara Keisuke、Koyachi Masahide、Tachizawa Kotaro、Iwasaki Akira、Wakita Ichiro、Nishiyama Akihiro、Matsunaga Satoru、Katakura Akira
    • Journal Title

      Maxillofacial Plastic and Reconstructive Surgery

      Volume: 45 Issue: 1

    • DOI

      10.1186/s40902-022-00370-6

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Using mixed reality and CAD/CAM technology for treatment of maxillary non-union after Le Fort I osteotomy: a case description2023

    • Author(s)
      Sugahara Keisuke、Koyachi Masahide、Tachizawa Kotaro、Iwasaki Akira、Matsunaga Satoru、Odaka Kento、Sugimoto Maki、Abe Shinichi、Nishii Yasushi、Katakura Akira
    • Journal Title

      Quantitative Imaging in Medicine and Surgery

      Volume: 13 Issue: 2 Pages: 1190-1199

    • DOI

      10.21037/qims-22-414

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mixed reality and three dimensional printed models for resection of maxillary tumor: A case report2021

    • Author(s)
      Sugahara Keisuke、Koyachi Masahide、Koyama Yu、Sugimoto Maki、Matsunaga Satoru、Odaka Kento、Abe Shinichi、Katakura Akira
    • Journal Title

      Quantitative Imaging in Medicine and Surgery

      Volume: 11 Issue: 5 Pages: 2187

    • DOI

      10.21037/qims-20-597

    • URL

      https://pure.teikyo.jp/en/publications/89088b2b-a7e1-43bd-be43-81efbeadc662

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Accuracy of Le Fort I osteotomy with combined computer-aided design/computer-aided manufacturing technology and mixed reality2020

    • Author(s)
      Koyachi M.、Sugahara K.、Odaka K.、Matsunaga S.、Abe S.、Sugimoto M.、Katakura A.
    • Journal Title

      International Journal of Oral and Maxillofacial Surgery

      Volume: in press Issue: 6 Pages: 782-790

    • DOI

      10.1016/j.ijom.2020.09.026

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Extended Reality技術とCAD/CAM技術を顎矯正手術に応用する2023

    • Author(s)
      菅原圭亮、小谷地雅秀、片倉朗
    • Organizer
      第77回NPO法人日本口腔科学会学術集会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Digital Transformationにより手術経験の不足を補うことを推進する2023

    • Author(s)
      小谷地雅秀
    • Organizer
      第1回若手口腔外科医交流会 シンポジウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Innovation of Medical Digital Transformation in Oral and Maxillofacial Surgery-CAD / CAM, Extended Reality, Medical Metaverse-.2022

    • Author(s)
      小谷地雅秀
    • Organizer
      第72回ドイツ口腔顎顔面外科学会(72nd DGMKG Congress)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 成功体験の繰り返しが若手口腔外科医のモチベーションをあげる2022

    • Author(s)
      小谷地雅秀
    • Organizer
      第67回 日本口腔外科学会総会・学術大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Extended Reality(XR)技術・CAD/CAM技術を併用したLe Fort Ⅰ型骨切り術の精度検証2022

    • Author(s)
      小谷地雅秀, 菅原圭亮, 立澤孝太郎, 小髙研人, 片倉朗
    • Organizer
      第56回 日本口腔科学会関東地方部会
    • Related Report
      2022 Research-status Report
  • [Presentation] Extended Reality(XR)技術を用いた3D解剖学教材の有用性の検討2022

    • Author(s)
      立澤孝太郎, 小谷地雅秀, 菅原圭亮, 小髙研人, 高野正行, 片倉朗
    • Organizer
      第67回 日本口腔外科学会総会・学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] カッティングデバイスを用いて上顎に発生したkissing molars class3を抜歯した1例2022

    • Author(s)
      加藤禎彬, 西山明宏, 立澤孝太郎, 小山侑, 小谷地雅秀, 山本圭, 國分克寿, 片倉朗
    • Organizer
      第67回 日本口腔外科学会総会・学術大会
    • Related Report
      2022 Research-status Report
  • [Presentation] TruMatch CMF Reconstruction システムを用いて下顎骨再建術を行った2例の精度検証2021

    • Author(s)
      小谷地雅秀,菅原圭亮,小高研人,松永 智,立澤孝太郎,高野正行, 片倉 朗
    • Organizer
      第25回日本顎顔面インプラント学会総会・学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] CAD/CAM( TruMatchCMF )とMR手術支援を併用し下顎骨再建術を行った1例2021

    • Author(s)
      小谷地雅秀, 菅原圭亮, 小髙研人, 松永 智, 立澤孝太郎,吉田秀児, 大野啓介, 藤川 秋, 髙野正行, 片倉 朗
    • Organizer
      第66回 日本口腔外科学会総会・学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mixed Reality技術とCAD/CAM技術を用いたオトガイ形成術2021

    • Author(s)
      立澤孝太郎 , 小谷地雅秀 , 菅原圭亮 , 山本雅絵 , 笠原清弘 , 片倉 朗
    • Organizer
      第31回 日本顎変形症学会総会・学術大会
    • Related Report
      2021 Research-status Report
  • [Book] INNERVISION2023

    • Author(s)
      小谷地雅秀、菅原圭亮、立澤孝太郎、西山明宏、小高研人、松永智、杉本真樹、立木千恵、西井康、片倉朗
    • Total Pages
      12
    • Publisher
      インナービジョン
    • Related Report
      2023 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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