{"created":"2021-03-01T07:36:43.703822+00:00","id":55722,"links":{},"metadata":{"_buckets":{"deposit":"f37d6733-87de-4764-a598-0d432036c7b8"},"_deposit":{"id":"55722","owners":[],"pid":{"revision_id":0,"type":"depid","value":"55722"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00055722","sets":["2780:1783","2780:1990","2780:6858","2780:7795","2780:968","3:62:5592:8050"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2019-12","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"275","bibliographicPageStart":"270","bibliographicVolumeNumber":"44","bibliographic_titles":[{},{"bibliographic_title":"Journal of Medical Physics","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: The purpose of this study is to evaluate the influence of variable relative biological effectiveness (RBE) of proton beam and dose fractionation has on dose distribution and to establish a new three-dimensional dose evaluation method for proton therapy combined with high-dose-rate (HDR) brachytherapy. Materials and Methods: To evaluate the influence of variable RBE and dose fractionation on dose distribution in proton beam therapy, the depth-dose distribution of proton therapy was compared with clinical dose, RBE-weighted dose, and equivalent dose in 2 Gy fractions using a linear-quadratic-linear model (EQD2LQL). The clinical dose was calculated by multiplying the physical dose by RBE of 1.1. The RBE-weighted dose is a biological dose that takes into account RBE variation calculated by microdosimetric kinetic model implemented in Monte Carlo code. The EQD2LQLis a biological dose that makes the RBE-weighted dose equivalent to 2 Gy using a linear-quadratic-linear (LQL) model. Finally, we evaluated the three-dimensional dose by taking into account RBE variation and LQL model for proton therapy combined with HDR brachytherapy. Results: The RBE-weighted dose increased at the distal of the spread-out Bragg peak (SOBP). With the difference in the dose fractionation taken into account, the EQD2LQLat the distal of the SOBP increased more than the RBE-weighted dose. In proton therapy combined with HDR brachytherapy, a divergence of 103% or more was observed between the conventional dose estimation method and the dose estimation method we propose. Conclusions: Our dose evaluation method can evaluate the EQD2LQLconsidering RBE changes in the dose distribution.","subitem_description_type":"Abstract"}]},"item_5_publisher_27":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Wolters Kluwer ‑ Medknow"}]},"item_5_relation_10":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"31908386","subitem_relation_type_select":"PMID"}}]},"item_5_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.4103/jmp.JMP_117_18","subitem_relation_type_select":"DOI"}}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2019 Journal of Medical Physics | Published by Wolters Kluwer ‑ Medknow"},{"subitem_rights":"This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution‑NonCommercial‑ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non‑commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms."}]},"item_5_select_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0971-6203","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"磯辺, 智範"},{"creatorName":"イソベ, トモノリ","creatorNameLang":"ja-Kana"},{"creatorName":"ISOBE, Tomonori","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"森, 祐太郎"},{"creatorName":"モリ, ユウタロウ","creatorNameLang":"ja-Kana"},{"creatorName":"MORI, Yutaro","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"武居, 秀行"},{"creatorName":"タケイ, ヒデユキ","creatorNameLang":"ja-Kana"},{"creatorName":"TAKEI, Hideyuki","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"熊田, 博明"},{"creatorName":"クマダ, ヒロアキ","creatorNameLang":"ja-Kana"},{"creatorName":"KUMADA, Hiroaki","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"榮, 武二"},{"creatorName":"サカエ, タケジ","creatorNameLang":"ja-Kana"},{"creatorName":"SAKAE, Takeji","creatorNameLang":"en"}],"nameIdentifiers":[{},{},{}]},{"creatorNames":[{"creatorName":"Kobayashi, Daisuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takada, Kenta","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kamizawa, Satoshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tomita, Tetsuya","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sato, Eisuke","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yokota, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-08-27"}],"displaytype":"detail","filename":"JMP_44-4.pdf","filesize":[{"value":"1.2 MB"}],"format":"application/pdf","licensetype":"license_10","mimetype":"application/pdf","url":{"label":"JMP_44-4","url":"https://tsukuba.repo.nii.ac.jp/record/55722/files/JMP_44-4.pdf"},"version_id":"bdbb3416-009b-493f-ab22-0f80c647921c"}]},"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":"Establishment of a new three-dimensional dose evaluation method considering variable relative biological effectiveness and dose fractionation in proton therapy combined with high-dose-rate brachytherapy","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Establishment of a new three-dimensional dose evaluation method considering variable relative biological effectiveness and dose fractionation in proton therapy combined with high-dose-rate brachytherapy","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1990","1783","968","7795","6858","8050"],"pubdate":{"attribute_name":"公開日","attribute_value":"2020-08-28"},"publish_date":"2020-08-28","publish_status":"0","recid":"55722","relation_version_is_last":true,"title":["Establishment of a new three-dimensional dose evaluation method considering variable relative biological effectiveness and dose fractionation in proton therapy combined with high-dose-rate brachytherapy"],"weko_creator_id":"1","weko_shared_id":5},"updated":"2022-04-27T09:29:14.803123+00:00"}