{"created":"2025-06-20T04:31:15.864501+00:00","id":2000455,"links":{},"metadata":{"_buckets":{"deposit":"daccffdd-18e8-4b9c-8c7f-12ba6d52d902"},"_deposit":{"created_by":4,"id":"2000455","owner":"4","owners":[4],"pid":{"revision_id":0,"type":"depid","value":"2000455"},"status":"published"},"_oai":{"id":"oai:hama-med.repo.nii.ac.jp:02000455","sets":["1:11"]},"author_link":[],"control_number":"2000455","item_1747115756369":{"attribute_name":"PubMed番号","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"32740865","subitem_relation_type_select":"PMID"}}]},"item_1747115938917":{"attribute_name":"出版社DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1007/s00261-020-02695-0","subitem_relation_type_select":"DOI"}}]},"item_1748498410707":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1749433886912":{"attribute_name":"EISSN","attribute_value_mlt":[{"subitem_source_identifier":"2366-0058","subitem_source_identifier_type":"EISSN"}]},"item_1750750575061":{"attribute_name":"著者情報","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"市川, 新太郎","creatorNameLang":"ja","creatorNameType":"Personal"},{"creatorName":"イチカワ, シンタロウ","creatorNameLang":"ja-Kana","creatorNameType":"Personal"}]}]},"item_30001_access_rights4":{"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_30001_bibliographic_information17":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2021-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"646","bibliographicPageStart":"636","bibliographicVolumeNumber":"46","bibliographic_titles":[{"bibliographic_title":"Abdominal radiology","bibliographic_titleLang":"en"}]}]},"item_30001_creator2":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ichikawa, Shintaro","creatorNameLang":"en","creatorNameType":"Personal"}]},{"creatorNames":[{"creatorName":"Kromrey, Marie-Luise","creatorNameLang":"de","creatorNameType":"Personal"}]},{"creatorNames":[{"creatorName":"Motosugi, Utaroh","creatorNameLang":"en","creatorNameType":"Personal"}]},{"creatorNames":[{"creatorName":"Onishi, Hiroshi","creatorNameLang":"en","creatorNameType":"Personal"}]}]},"item_30001_description8":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: To compare computed diffusion-weighted imaging (cDWI) feasibility with that of directly acquired DWI for visualizing pancreatic ductal adenocarcinoma (PDAC) and focal autoimmune pancreatitis (AIP).\nMethods: From April 2012 to January 2017, 135 patients with PDAC (n=111) or focal AIP (n=24) were retrospectively enrolled. They underwent DWI with b-values of 0, 500, and 1000 s/mm2. From DWI0 and DWI1000, we generated cDWIs with targeted b-values of 1500, 2000, and 3000 s/mm2. The lesions’ signal intensities, image quality, signal-intensity ratio (SIR) of lesions and pancreatic parenchyma to spinal cord, and lesion-to-pancreatic parenchyma contrast ratio (CR) were compared among the five DWI protocols (DWI500, DWI1000, cDWI1500, cDWI2000, and cDWI3000). SIR was analyzed by receiver operating characteristic (ROC) analyses.\nResults: DWI500, DWI1000, and cDWI1500 had higher image quality than cDWI2000 and cDWI3000 (P<0.001). The incidence of clear hyperintense PDAC was highest on cDWI2000, followed by cDWI1500, and cDWI3000 (P<0.001–0.002), while the incidence of clear hyperintense AIP was higher on DWI1000, cDWI1500, and cDWI2000 than on DWI500 and cDWI3000 (P=0.001–0.022). SIRs decreased whereas CRs increased as the b-value increased, for both PDAC and AIP. The area under the ROC curve (AUC) of SIRlesion was significantly lower on cDWI1500 than on cDWI2000 and cDWI3000 (P<0.001).\nConclusion: cDWI1500 or cDWI2000 generated from b-values of 0 and 1000 s/mm2 were the most effective for visualizing PDAC and focal AIP; however, the SIRlesion AUC was significantly lower on cDWI1500 than on cDWI2000 and cDWI3000.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_30001_file22":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2025-06-20"}],"displaytype":"detail","filename":"Abdom Radiol-46-636 .pdf","filesize":[{"value":"7.3 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://hama-med.repo.nii.ac.jp/record/2000455/files/Abdom Radiol-46-636 .pdf"},"version_id":"8708f3f3-f9f3-4155-abf6-7b12ed670a5e"}]},"item_30001_language10":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_30001_publisher9":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Springer Nature","subitem_publisher_language":"en"}]},"item_30001_rights5":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00261-020-02695-0","subitem_rights_language":"en"}]},"item_30001_source_identifier16":{"attribute_name":"PISSN","attribute_value_mlt":[{"subitem_source_identifier":"2366-004X","subitem_source_identifier_type":"PISSN"}]},"item_30001_subject7":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"magnetic resonance imaging","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"computed diffusion-weighted imaging","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"pancreas","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"adenocarcinoma","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"autoimmune pancreatitis","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_30001_title0":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Optimal target b-value on computed diffusion-weighted magnetic resonance imaging for visualization of pancreatic ductal adenocarcinoma and focal autoimmune pancreatitis","subitem_title_language":"en"}]},"item_30001_version_type12":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_title":"Optimal target b-value on computed diffusion-weighted magnetic resonance imaging for visualization of pancreatic ductal adenocarcinoma and focal autoimmune pancreatitis","item_type_id":"40002","owner":"4","path":["11"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2025-06-23"},"publish_date":"2025-06-23","publish_status":"0","recid":"2000455","relation_version_is_last":true,"title":["Optimal target b-value on computed diffusion-weighted magnetic resonance imaging for visualization of pancreatic ductal adenocarcinoma and focal autoimmune pancreatitis"],"weko_creator_id":"4","weko_shared_id":-1},"updated":"2025-06-27T05:08:01.161749+00:00"}