{"created":"2023-07-27T06:29:15.789448+00:00","id":14005,"links":{},"metadata":{"_buckets":{"deposit":"920e14c4-32c2-49a6-9959-bfc0b62c1cf4"},"_deposit":{"created_by":3,"id":"14005","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"14005"},"status":"published"},"_oai":{"id":"oai:kanazawa-u.repo.nii.ac.jp:00014005","sets":["1132:1133:1134"]},"author_link":["23760","23761","23762","529","23759"],"item_4_biblio_info_8":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2013-07-26","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"3","bibliographicPageEnd":"75","bibliographicPageStart":"69","bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"International Journal of Medical Physics,Clinical Engineering and Radiation Oncology"}]}]},"item_4_description_21":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In this study, we compared the motion accuracy of a six degrees of freedom (6D) couch for precision radiotherapy with or without weights attached to the couch. Two digital cameras were focused on the iso-center of a linear accelerator. Images of a needle which had been fixed to the 6D couch were obtained using the cameras when the couch moved in translation and rotation around each axis. The three-dimensional (3D) coordinates of the needle were calculated from coordinate values in the images. A coordinate error of the needle position relative to the theoretical position was calculated. The errors were obtained with or without a 60 kg weight attached to the 6D couch, and these errors were compared with each other. The mean distance of the 3D error vectors for the weighted test was 0.21 ± 0.11 mm, and >0.16 ± 0.09 mm for the non-weighted test (p < 0.05). However, the difference of two values was 0.06 mm which is smaller than the minimum distance the 6D couch system can correctly move. The variance of 0.16 mm for the Y coordinate errors for the weighted test only was larger than that for the non-weighted test, which was 0.06 mm (p < 0.05). We found that a total weight of 60 kg did not affect the accuracy of the 6D couch clinically. However, the variance of the Y coordinate errors was increased. This might suggest that the addition of this weight increased the uncertainty of the motion of the 6D couch.","subitem_description_type":"Abstract"}]},"item_4_publisher_17":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Scientific Research Publishing"}]},"item_4_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.4236/ijmpcero.2013.23010","subitem_relation_type_select":"DOI"}}]},"item_4_relation_28":{"attribute_name":"関連URI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"http://www.scirp.org/journal/ijmpcero","subitem_relation_type_select":"URI"}}]},"item_4_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2168-5436","subitem_source_identifier_type":"ISSN"}]},"item_4_version_type_25":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Takemura, Akihiro"}],"nameIdentifiers":[{},{},{},{}]},{"creatorNames":[{"creatorName":"Ueda, Shinichi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Noto, Kimiya"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kojima, Hironori"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Isomura, Naoki"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-10-03"}],"displaytype":"detail","filename":"ME-PR-TAKEMURA-A-2013072615392321.pdf","filesize":[{"value":"418.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ME-PR-TAKEMURA-A-2013072615392321.pdf","url":"https://kanazawa-u.repo.nii.ac.jp/record/14005/files/ME-PR-TAKEMURA-A-2013072615392321.pdf"},"version_id":"43b48c4f-509d-4a9a-bae2-b17502ad39a9"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights"}]},"item_type_id":"4","owner":"3","path":["1134"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-10-03"},"publish_date":"2017-10-03","publish_status":"0","recid":"14005","relation_version_is_last":true,"title":["Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights"],"weko_creator_id":"3","weko_shared_id":-1},"updated":"2023-07-28T00:54:49.488857+00:00"}