WEKO3
インデックスリンク
アイテム
{"_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": ["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 \u003e0.16 ± 0.09 mm for the non-weighted test (p \u003c 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 \u003c 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": [{"nameIdentifier": "529", "nameIdentifierScheme": "WEKO"}, {"nameIdentifier": "70313674", "nameIdentifierScheme": "e-Rad", "nameIdentifierURI": "https://kaken.nii.ac.jp/ja/search/?qm=70313674"}, {"nameIdentifier": "70313674", "nameIdentifierScheme": "金沢大学研究者情報", "nameIdentifierURI": "http://ridb.kanazawa-u.ac.jp/public/detail.php?kaken=70313674"}, {"nameIdentifier": "70313674", "nameIdentifierScheme": "研究者番号", "nameIdentifierURI": "https://nrid.nii.ac.jp/nrid/1000070313674"}]}, {"creatorNames": [{"creatorName": "Ueda, Shinichi"}], "nameIdentifiers": [{"nameIdentifier": "23759", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Noto, Kimiya"}], "nameIdentifiers": [{"nameIdentifier": "23760", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kojima, Hironori"}], "nameIdentifiers": [{"nameIdentifier": "23761", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Isomura, Naoki"}], "nameIdentifiers": [{"nameIdentifier": "23762", "nameIdentifierScheme": "WEKO"}]}]}, "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", "download_preview_message": "", "file_order": 0, "filename": "ME-PR-TAKEMURA-A-2013072615392321.pdf", "filesize": [{"value": "418.5 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 418500.0, "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_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "6D Couch", "subitem_subject_scheme": "Other"}, {"subitem_subject": "IGRT", "subitem_subject_scheme": "Other"}, {"subitem_subject": "Accuracy Assessment", "subitem_subject_scheme": "Other"}]}, "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"], "permalink_uri": "http://hdl.handle.net/2297/35147", "pubdate": {"attribute_name": "公開日", "attribute_value": "2017-10-03"}, "publish_date": "2017-10-03", "publish_status": "0", "recid": "14005", "relation": {}, "relation_version_is_last": true, "title": ["Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights"], "weko_shared_id": -1}
Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights
http://hdl.handle.net/2297/35147
http://hdl.handle.net/2297/351473f869ca9-5c46-4d78-807b-028aa76362a2
名前 / ファイル | ライセンス | アクション |
---|---|---|
ME-PR-TAKEMURA-A-2013072615392321.pdf (418.5 kB)
|
|
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Comparison of the Motion Accuracy of a Six Degrees of Freedom Radiotherapy Couch with and without Weights | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Takemura, Akihiro
× Takemura, Akihiro× Ueda, Shinichi× Noto, Kimiya× Kojima, Hironori× Isomura, Naoki |
|||||
書誌情報 |
International Journal of Medical Physics,Clinical Engineering and Radiation Oncology 巻 2, 号 3, p. 69-75, 発行日 2013-07-26 |
|||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2168-5436 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.4236/ijmpcero.2013.23010 | |||||
出版者 | ||||||
出版者 | Scientific Research Publishing | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | 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. | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関連URI | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.scirp.org/journal/ijmpcero |