{"created":"2023-05-15T16:49:51.926048+00:00","id":27495,"links":{},"metadata":{"_buckets":{"deposit":"709823f1-ba26-4a21-8c1a-1c60709c4a0a"},"_deposit":{"created_by":6,"id":"27495","owners":[6],"pid":{"revision_id":0,"type":"depid","value":"27495"},"status":"published"},"_oai":{"id":"oai:nagasaki-u.repo.nii.ac.jp:00027495","sets":["8:9"]},"author_link":["122201","122203","122202"],"item_2_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2022-07","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"4","bibliographicPageEnd":"245","bibliographicPageStart":"239","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"Journal of Thoracic Imaging"}]}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Purpose: To evaluate quantified iodine mapping parameters in dual-energy computed tomography in normal patients versus those with chronic thromboembolic pulmonary hypertension (CTEPH) with and without pulmonary thromboembolism. Materials and Methods: Using automatically quantified iodine mapping in dual-energy computed tomography, we evaluated lung relative average enhancement, standard deviation (SD), and the SD/lung relative average enhancement ratio. We compared the values for these parameters in normal patients versus those with CTEPH. We also performed a receiver operating characteristic curve analysis to determine the diagnostic cutoffs for the parameters. Results: Patients constituted 41 patients (10 male [24.4%] and 31 female [75.6%]; mean age [SD]: 70.0 y [13.3]) with CTEPH and 237 (92 male [38.8%] and 145 female [61.2%]; mean age [SD]: 65.9 y [15.9]) normal patients. We found significant differences in lung relative average enhancement (34.9±6.3 vs. 26.9±6.3; P<0.0001), SD (11.6±1.9 vs. 14.7±3.3; P<0.001), and the SD/lung relative average enhancement ratio (33.7±5.0 vs. 55.7±10.4; P<0.001) between the normal and CTEPH groups, respectively. The ROC analyses demonstrated high discriminatory power (area under the curve=0.99) for using the SD/lung relative average enhancement ratio to differentiate between patients in the normal group and CTEPH group. At a threshold for the area under the curve of 44.2, diagnostic sensitivity, specificity, positive predictive value, and negative predictive value for the ratio were 92.7%, 97.5%, 86.5%, and 98.7%, respectively. Conclusions: Patients with CTEPH were well-discriminated from normal patients using the SD/lung relative average enhancement ratio. ","subitem_description_type":"Abstract"}]},"item_2_description_63":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"Journal of Thoracic Imaging, 37(4), pp. 239-245; 2022　","subitem_description_type":"Other"}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":" Wolters Kluwer"}]},"item_2_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1097/RTI.0000000000000646","subitem_relation_type_select":"DOI"}}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"© 2022 Wolters Kluwer Health, Inc.This is a non-final version of an article published in final form in (provide complete journal citation)"}]},"item_2_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0883-5993","subitem_source_identifier_type":"ISSN"}]},"item_2_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Koike, Hirofumi"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sueyoshi, Eijun"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Uetani, Masataka"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-07-01"}],"displaytype":"detail","filename":"JTI374_239.pdf","filesize":[{"value":"777.2 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"JTI374_239.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/27495/files/JTI374_239.pdf"},"version_id":"0ed5fec1-b638-4442-a5c2-7ed46eb1f984"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"chronic thromboembolic pulmonary hypertension","subitem_subject_scheme":"Other"},{"subitem_subject":"dual-energy computed tomography","subitem_subject_scheme":"Other"},{"subitem_subject":"lung relative average enhancement","subitem_subject_scheme":"Other"},{"subitem_subject":"sensitivity","subitem_subject_scheme":"Other"},{"subitem_subject":"standard deviation","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":"Diagnosis of Chronic Thromboembolic Pulmonary Hypertension Using Quantitative Lung Perfusion Parameters Extracted From Dual-energy Computed Tomography Images","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Diagnosis of Chronic Thromboembolic Pulmonary Hypertension Using Quantitative Lung Perfusion Parameters Extracted From Dual-energy Computed Tomography Images"}]},"item_type_id":"2","owner":"6","path":["9"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-07-19"},"publish_date":"2022-07-19","publish_status":"0","recid":"27495","relation_version_is_last":true,"title":["Diagnosis of Chronic Thromboembolic Pulmonary Hypertension Using Quantitative Lung Perfusion Parameters Extracted From Dual-energy Computed Tomography Images"],"weko_creator_id":"6","weko_shared_id":-1},"updated":"2023-05-15T19:41:36.584978+00:00"}