{"created":"2023-05-15T14:36:55.234648+00:00","id":47574,"links":{},"metadata":{"_buckets":{"deposit":"17ba066f-93d3-47b1-89e3-9257a7e72082"},"_deposit":{"created_by":1,"id":"47574","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"47574"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00047574","sets":["1"]},"author_link":["476884","476887","476886","476885","476888","476883"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"607","bibliographicPageStart":"602","bibliographicVolumeNumber":"35","bibliographic_titles":[{"bibliographic_title":"Medical Physics"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A new variant of the pencil-beam (PB) algorithm for dose distribution calculation for radiotherapy with protons and heavier ions, the grid-dose spreading (GDS) algorithm, is proposed. The GDS algorithm is intrinsically faster than conventional PB algorithms due to approximations in convolution integral, where physical calculations are decoupled from simple grid-to-grid energy transfer. It was effortlessly implemented to a carbon-ion radiotherapy treatment planning system to enable realistic beam blurring in the field, which was absent with the broad-beam (BB) algorithm. For a typical prostate treatment, the slowing factor of the GDS algorithm relative to the BB algorithm was 1.4, which is a great improvement over the conventional PB algorithms with a typical slowing factor of several tens. The GDS algorithm is mathematically equivalent to the PB algorithm for horizontal and vertical coplanar beams commonly used in carbon-ion radiotherapy while dose deformation within the size of the pristine spread occurs for angled beams, which was within 3 mm for a single 150-MeV proton pencil beam of 30-degree incidence, and needs to be assessed against the clinical requirements and tolerances in practical situations.","subitem_description_type":"Abstract"}]},"item_8_relation_13":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"18383681","subitem_relation_type_select":"PMID"}}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1118/1.2829878","subitem_relation_type_select":"DOI"}}]},"item_8_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0094-2405","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kanematsu, Nobuyuki"}],"nameIdentifiers":[{"nameIdentifier":"476883","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Yonai, Shunsuke"}],"nameIdentifiers":[{"nameIdentifier":"476884","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ishizaki, Azusa"}],"nameIdentifiers":[{"nameIdentifier":"476885","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"兼松 伸幸","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"476886","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"米内 俊祐","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"476887","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"石崎 梓","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"476888","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":"2019-02-14"}],"displaytype":"detail","filename":"57e8dd0b158eb14a51ca1fe3c0e0d97a.pdf","filesize":[{"value":"315.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"manuscript.pdf","url":"https://repo.qst.go.jp/record/47574/files/57e8dd0b158eb14a51ca1fe3c0e0d97a.pdf"},"version_id":"cbd30a9c-8eb5-4ea0-a124-b8a97da20033"}]},"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":"The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy"}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2016-10-18"},"publish_date":"2016-10-18","publish_status":"0","recid":"47574","relation_version_is_last":true,"title":["The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:38:12.541051+00:00"}