{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390577740948618880.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.15017/6788286"}},{"identifier":{"@type":"HDL","@value":"https://hdl.handle.net/2324/6788286"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"032895627"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/032895627"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I032895627"}},{"identifier":{"@type":"URI","@value":"https://search.jamas.or.jp/link/ui/2024086735"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@language":"ja","@value":"医学教育のための仮想現実空間に表現した物体長計測システムの開発"},{"@language":"en","@value":"Development of an Object LengthMeasurement System in a Virtual Reality Space for Medical Education"}],"dc:language":"en","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Purpose : This study aimed to develop a prototype caliper measurement tool that exists in real space to measure the length of three-dimensional (3D) virtual reality (VR) anatomical models with acceptable accuracy and reproducibility, particularly for medical education and training. Methods : The measurement tool was constructed using a digital caliper with two object-tracking sensors to synchronize the positions of the virtual and real jaws. The accuracy and reproducibility for measuring virtual cubes (5, 10, 25, 50, and 100 mm) and three anatomical regions of VR models for vessel, skeleton, and organ were examined. Measurements for the virtual cubes and VR anatomical models were performed by one and two raters, respectively. The degree of agreement between measurements was evaluated using intraclass correlation coefficients (ICC). Results : The developed tool effectively connected real and VR spaces. The measurement errors of the virtual cubes were within 0.5 mm or less for all virtual cube sizes. No statistically significant differences were observed between the errors for any of the virtual cube sizes. Alternatively, measurement errors were within 0.3 mm or less for all regions of VR anatomical models. No statistically significant differences were observed between the errors for the VR anatomical models. High degrees of intra- and inter-rater measurement reliabilities in terms of the ICC were 0.99 in both. Conclusion : The developed prototype measurement tool was effective in a VR environment with measurement errors of less than 0.5 mm and reliable ICCs for the measurement of VR objects and VR anatomical structures, especially for medical education and training."},{"@language":"ja","@value":"【目的】本研究は，head-mounted display（HMD）装着下でバーチャルリアリティ（VR）空間に表現 したVR 解剖モデルの直接的な計測評価が可能なデジタルノギスを利用した長さ計測システムのプロトタイプを開発し，計測の正確さと再現性を評価することで，医学・医療分野での活用の可能性と意義を考察することを目的とした．【方法】実物体と仮想物体の位置・動きを同期するセンサで，現実空間のデジタルノギスのjawとVR 空間の仮想jaw とを紐付け，VR 空間で使用できる長さの計測システムを開発した．この計測システムの評価は，一辺が5，10，25，50，100 mmの仮想キューブと，VR で表現した三つのVR 解剖モデ ル（血管，骨格，臓器）に対して行った．キューブは1名の被験者による計測，VR解剖モデルは2名の被験者による計測を行い，結果は，キューブとVR 解剖モデルに対する計測誤差とその統計的分析により評価した．また，被験者内の計測の信頼性と被験者間の計測の信頼性を，級内相関係数（intraclass correlation coefficients：ICC）を求め評価した． 【結果】開発した計測システムは，現実空間のデジタルノギスのjaw とVR 空間の仮想jaw が連動し，HMD 装着下でVR 空間上に表現した物体の長さを計測できた．キューブの計測誤差は，すべてのキューブサイズで0.5 mm以内であった．また，各キューブサイズの計測誤差間には統計的有意差を 認めなかった．VR 解剖モデルの計測誤差は，すべての解剖部位で0.3mm以内で，各VR 解剖モデ ルの計測誤差の間にも統計的有意差を認めなかった．被験者内および被験者間の計測の信頼性（ICC）はともに0.99 と十分に高い値を示した．【結論】HMD装着下でVR 解剖モデルの直接的な計測評価が可能な長さ計測システムのプロトタイプ を開発でき，医学・医療分野での活用の可能性がある．"}],"abstractLicenseFlag":"allow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1410577740948618880","@type":"Researcher","foaf:name":[{"@language":"en","@value":"KATAYAMA Reiji"},{"@language":"ja","@value":"片山 礼司"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学系学府保健学専攻 : 博士後期課程"},{"@language":"en","@value":"Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University"},{"@language":"en","@value":"Center for the Study of Medical Education, Kurume University School of Medicine"},{"@language":"ja","@value":"久留米大学医学部医学教育研究センター"}]},{"@id":"https://cir.nii.ac.jp/crid/1410017057765337728","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"杜下 淳次"},{"@language":"en","@value":"MORISHITA Junji"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学研究院保健学部門医用量子線科学分野"},{"@language":"en","@value":"Department of Health Sciences, Faculty of Medical Sciences, Kyushu University"}]},{"@id":"https://cir.nii.ac.jp/crid/1410017057765337729","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"藪内 英剛"},{"@language":"en","@value":"YABUUCHI Hidetake"}],"jpcoar:affiliationName":[{"@language":"ja","@value":"九州大学大学院医学研究院保健学部門医用量子線科学分野"},{"@language":"en","@value":"Department of Health Sciences, Faculty of Medical Sciences, Kyushu University"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"0016254X"},{"@type":"NDL_BIB_ID","@value":"000000020524"},{"@type":"ISSN","@value":"0016254X"},{"@type":"LISSN","@value":"0016254X"},{"@type":"NCID","@value":"AN00215478"}],"prism:publicationName":[{"@language":"ja","@value":"福岡醫學雜誌"}],"dc:publisher":[{"@language":"en","@value":"Fukuoka Medical Association"},{"@language":"ja","@value":"福岡医学会"}],"prism:publicationDate":"2022-12-25","prism:volume":"113","prism:number":"4","prism:startingPage":"59","prism:endingPage":"72"},"dcterms:accessRights":"http://purl.org/coar/access_right/c_abf2","url":[{"@id":"http://id.ndl.go.jp/bib/032895627"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I032895627"},{"@id":"https://search.jamas.or.jp/link/ui/2024086735"}],"availableAt":"2022-12-25","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=virtual%20reality","dc:title":"virtual reality"},{"@id":"https://cir.nii.ac.jp/all?q=medical%20education","dc:title":"medical education"},{"@id":"https://cir.nii.ac.jp/all?q=preoperative%20training","dc:title":"preoperative training"},{"@id":"https://cir.nii.ac.jp/all?q=anatomical%20model","dc:title":"anatomical model"},{"@id":"https://cir.nii.ac.jp/all?q=measurement%20tool","dc:title":"measurement tool"},{"@id":"https://cir.nii.ac.jp/all?q=%E4%BB%AE%E6%83%B3%E7%8F%BE%E5%AE%9F","dc:title":"仮想現実"},{"@id":"https://cir.nii.ac.jp/all?q=%E5%8C%BB%E5%AD%A6%E6%95%99%E8%82%B2","dc:title":"医学教育"},{"@id":"https://cir.nii.ac.jp/all?q=%E6%89%8B%E8%A1%93%E3%83%88%E3%83%AC%E3%83%BC%E3%83%8B%E3%83%B3%E3%82%B0","dc:title":"手術トレーニング"},{"@id":"https://cir.nii.ac.jp/all?q=%E8%A7%A3%E5%89%96%E3%83%A2%E3%83%87%E3%83%AB","dc:title":"解剖モデル"},{"@id":"https://cir.nii.ac.jp/all?q=%E7%89%A9%E4%BD%93%E9%95%B7%E8%A8%88%E6%B8%AC%E3%82%B7%E3%82%B9%E3%83%86%E3%83%A0","dc:title":"物体長計測システム"}],"dcterms:subject":[{"subjectScheme":"Other","notation":[{"@language":"en","@value":"virtual reality"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"medical education"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"preoperative training"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"anatomical model"}]},{"subjectScheme":"Other","notation":[{"@language":"en","@value":"measurement tool"}]},{"subjectScheme":"Other","notation":[{"@language":"ja","@value":"仮想現実"}]},{"subjectScheme":"Other","notation":[{"@language":"ja","@value":"医学教育"}]},{"subjectScheme":"Other","notation":[{"@language":"ja","@value":"手術トレーニング"}]},{"subjectScheme":"Other","notation":[{"@language":"ja","@value":"解剖モデル"}]},{"subjectScheme":"Other","notation":[{"@language":"ja","@value":"物体長計測システム"}]}],"dataSourceIdentifier":[{"@type":"JALC","@value":"oai:japanlinkcenter.org:2010651792"},{"@type":"IRDB","@value":"oai:irdb.nii.ac.jp:01211:0005817347"},{"@type":"NDL_SEARCH","@value":"oai:ndlsearch.ndl.go.jp:R000000004-I032895627"}]}