{"created":"2023-05-15T09:45:59.262252+00:00","id":7333,"links":{},"metadata":{"_buckets":{"deposit":"86f9162f-4ce0-46ce-96fd-8c87ccf9458b"},"_deposit":{"created_by":11,"id":"7333","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"7333"},"status":"published"},"_oai":{"id":"oai:kagawa-u.repo.nii.ac.jp:00007333","sets":["13:40"]},"author_link":["3204"],"item_10006_alternative_title_1":{"attribute_name":"その他（別言語等）のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"画像変形位置合わせ後のPET画像に基づく自動輪郭描出法の標的描出精度 : ファントム研究","subitem_alternative_title_language":"ja"}]},"item_10006_date_granted_11":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2021-03-24"}]},"item_10006_degree_grantor_9":{"attribute_name":"学位授与機関","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_language":"ja","subitem_degreegrantor_name":"香川大学"},{"subitem_degreegrantor_language":"en","subitem_degreegrantor_name":"Kagawa University"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"16201","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_10006_degree_name_8":{"attribute_name":"学位名","attribute_value_mlt":[{"subitem_degreename":"博士（医学）","subitem_degreename_language":"ja"}]},"item_10006_description_7":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: Diagnostic positron emission tomography and computed tomography (PET/CT) images can be fused to the planning CT images by a deformable image registration (DIR). The aim of this study was to evaluate the standardized uptake value (SUV) and target delineation on deformed PET images.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"Methods: We used a cylindrical phantom and removable inserts of four spheres (16-38 mm in diameter) and three ellipsoids with a volume equal to the 38-mm-diameter sphere (S38) in each. S38 was filled with 18F-fluorodeoxyglucose activity, and then PET/CT images were acquired. The contours of S38 were generated using original PET images by PET auto-segmentation (PET-AS) methods of (1) SUV2.5, (2) 40% of maximum SUV (SUV40%max), and (3) gradient-based (GB), and were deformed to the other inserts by DIR. We compared the volumes and the SUVmax with the generated contours using the deformed PET images.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"Results: The SUVmax was slightly decreased by DIR; the mean absolute difference was -0.10 ± 0.04. For SUV2.5 and SUV40%max, the differences in S38 volumes between the original and deformed PET images were less than 5%, regardless of deformation type. For the GB, the contoured volumes obtained from deformed PET images were larger than those of the original PET images for the deformation type of ellipsoids. When the S38 was deformed to the 16-mm-diameter sphere, the maximum volume difference was -22.8%.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"Conclusions: Although SUV fluctuations by DIR were negligible, the target delineation on deformed PET images by the GB should be carefully considered owing to the distortion of intensity profiles.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10006_dissertation_number_12":{"attribute_name":"学位授与番号","attribute_value_mlt":[{"subitem_dissertationnumber":"甲第767号"}]},"item_10006_relation_15":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.ejmp.2020.07.015","subitem_relation_type_select":"DOI"}}]},"item_10006_relation_22":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"32707483","subitem_relation_type_select":"PMID"}}]},"item_10006_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright © 2020 Associazione Italiana di Fisica Medica. Published by Elsevier Ltd. All rights reserved.","subitem_rights_language":"en"},{"subitem_rights":"Theses and dissertations which contain embedded PJAs as part of the formal submission can be posted publicly by the awarding institution with DOI links back to the formal publications on ScienceDirect.","subitem_rights_language":"en"}]},"item_10006_version_type_18":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_fa2ee174bc00049f","subitem_version_type":"P"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifier":"","affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationName":"","affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"Katayama, Hiroki","creatorNameLang":"en"},{"creatorName":"片山, 博貴","creatorNameLang":"ja"},{"creatorName":"カタヤマ, ヒロキ","creatorNameLang":"ja-Kana"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{},{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-04-22"}],"displaytype":"detail","filename":"Med_A767.pdf","filesize":[{"value":"4.5 MB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"本文","objectType":"fulltext","url":"https://kagawa-u.repo.nii.ac.jp/record/7333/files/Med_A767.pdf"},"version_id":"efbb6eed-4b53-46e0-9064-272369a02a52"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-04-21"}],"displaytype":"detail","filename":"Med_A767_abstract.pdf","filesize":[{"value":"68.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"内容の要旨","objectType":"abstract","url":"https://kagawa-u.repo.nii.ac.jp/record/7333/files/Med_A767_abstract.pdf"},"version_id":"803b45de-1dc6-4bbe-9f91-1d5fc523d542"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2021-04-21"}],"displaytype":"detail","filename":"Med_A767_result.pdf","filesize":[{"value":"89.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"審査の結果の要旨","objectType":"other","url":"https://kagawa-u.repo.nii.ac.jp/record/7333/files/Med_A767_result.pdf"},"version_id":"8596b54c-6a4d-471f-9292-5cd627731eab"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Deformable image registration","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"PET auto-segmentation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"PET/CT","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Treatment planning","subitem_subject_language":"en","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":"doctoral thesis","resourceuri":"http://purl.org/coar/resource_type/c_db06"}]},"item_title":"Accuracy of target delineation by positron emission tomography-based auto-segmentation methods after deformable image registration : A phantom study.","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Accuracy of target delineation by positron emission tomography-based auto-segmentation methods after deformable image registration : A phantom study.","subitem_title_language":"en"}]},"item_type_id":"10006","owner":"11","path":["40"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2021-04-21"},"publish_date":"2021-04-21","publish_status":"0","recid":"7333","relation_version_is_last":true,"title":["Accuracy of target delineation by positron emission tomography-based auto-segmentation methods after deformable image registration : A phantom study."],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2024-02-09T01:19:15.414433+00:00"}