{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:53:42Z","timestamp":1792788822507,"version":"4.5.0"},"reference-count":42,"publisher":"XMLink","issue":"9","license":[{"start":{"date-parts":[[2020,1,1]],"date-time":"2020-01-01T00:00:00Z","timestamp":1577836800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"name":"Bracco Imaging Korea"}],"content-domain":{"domain":["kjronline.org"],"crossmark-restriction":false},"short-container-title":["Korean J Radiol"],"published-print":{"date-parts":[[2020]]},"DOI":"10.3348\/kjr.2019.0936","type":"journal-article","created":{"date-parts":[[2020,7,8]],"date-time":"2020-07-08T03:18:27Z","timestamp":1594178307000},"page":"1104","update-policy":"https:\/\/doi.org\/10.3348\/crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Visual and Quantitative Assessments of Regional Xenon-Ventilation Using Dual-Energy CT in Asthma-Chronic Obstructive Pulmonary Disease Overlap Syndrome: A Comparison with Chronic Obstructive Pulmonary Disease"],"prefix":"10.3348","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3508-2870","authenticated-orcid":false,"given":"Hye Jeon","family":"Hwang","sequence":"first","affiliation":[{"name":"Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2173-2193","authenticated-orcid":false,"given":"Sang Min","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0271-7884","authenticated-orcid":false,"given":"Joon Beom","family":"Seo","sequence":"additional","affiliation":[{"name":"Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4130-1486","authenticated-orcid":false,"given":"Jae Seung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3438-2217","authenticated-orcid":false,"given":"Namkug","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4814-6730","authenticated-orcid":false,"given":"Sei Won","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0116-4683","authenticated-orcid":false,"given":"Yeon-Mok","family":"Oh","sequence":"additional","affiliation":[{"name":"Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"18617","reference":[{"key":"10.3348\/kjr.2019.0936_ref1","doi-asserted-by":"crossref","first-page":"728","DOI":"10.1136\/thx.2008.108027","volume":"64","author":"Gibson","year":"2009","journal-title":"Thorax"},{"key":"10.3348\/kjr.2019.0936_ref2","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1183\/09031936.00216013","volume":"44","author":"Hardin","year":"2014","journal-title":"Eur Respir J"},{"key":"10.3348\/kjr.2019.0936_ref3","first-page":"861926","volume":"2011","author":"Zeki","year":"2011","journal-title":"J Allergy (Cairo)"},{"key":"10.3348\/kjr.2019.0936_ref4","unstructured":"2015 asthma, COPD and asthma-COPD overlap syndrome (ACOS). Global Initiative for Asthma Web site. Accessed Nov 2, 2017.  https:\/\/ginasthma.org\/asthma-copd-and-asthma-copd-overlap-syndrome-acos\/"},{"key":"10.3348\/kjr.2019.0936_ref5","doi-asserted-by":"crossref","first-page":"279","DOI":"10.3109\/02770903.2011.555576","volume":"48","author":"Kauppi","year":"2011","journal-title":"J Asthma"},{"key":"10.3348\/kjr.2019.0936_ref6","doi-asserted-by":"crossref","first-page":"1683","DOI":"10.1001\/archinte.160.11.1683","volume":"160","author":"Mannino","year":"2000","journal-title":"Arch Intern Med"},{"key":"10.3348\/kjr.2019.0936_ref7","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1378\/chest.13-0622","volume":"145","author":"Menezes","year":"2014","journal-title":"Chest"},{"key":"10.3348\/kjr.2019.0936_ref8","doi-asserted-by":"crossref","first-page":"163","DOI":"10.3109\/15412555.2013.831061","volume":"11","author":"Rhee","year":"2014","journal-title":"COPD"},{"key":"10.3348\/kjr.2019.0936_ref9","doi-asserted-by":"crossref","first-page":"931","DOI":"10.1378\/chest.08-0512","volume":"134","author":"Bakker","year":"2008","journal-title":"Chest"},{"key":"10.3348\/kjr.2019.0936_ref10","doi-asserted-by":"crossref","first-page":"626","DOI":"10.1148\/radiol.12120385","volume":"266","author":"Kim","year":"2013","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref11","doi-asserted-by":"crossref","first-page":"120","DOI":"10.1007\/s00330-011-2237-9","volume":"22","author":"Mets","year":"2012","journal-title":"Eur Radiol"},{"key":"10.3348\/kjr.2019.0936_ref12","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1148\/radiology.203.2.9114089","volume":"203","author":"Park","year":"1997","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref13","doi-asserted-by":"crossref","first-page":"615","DOI":"10.1148\/radiol.2482071482","volume":"248","author":"Chae","year":"2008","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref14","doi-asserted-by":"crossref","first-page":"354","DOI":"10.1097\/RLI.0b013e3181dfdae0","volume":"45","author":"Chae","year":"2010","journal-title":"Invest Radiol"},{"key":"10.3348\/kjr.2019.0936_ref15","doi-asserted-by":"crossref","first-page":"306","DOI":"10.1097\/RLI.0000000000000239","volume":"51","author":"Hwang","year":"2016","journal-title":"Invest Radiol"},{"key":"10.3348\/kjr.2019.0936_ref16","doi-asserted-by":"crossref","first-page":"975","DOI":"10.2214\/AJR.11.7624","volume":"199","author":"Kim","year":"2012","journal-title":"AJR Am J Roentgenol"},{"key":"10.3348\/kjr.2019.0936_ref17","doi-asserted-by":"crossref","first-page":"180111","DOI":"10.1183\/16000617.0111-2018","volume":"28","author":"King","year":"2019","journal-title":"Eur Respir Rev"},{"key":"10.3348\/kjr.2019.0936_ref18","doi-asserted-by":"crossref","first-page":"e0170289","DOI":"10.1371\/journal.pone.0170289","volume":"12","author":"Sugino","year":"2017","journal-title":"PLoS One"},{"key":"10.3348\/kjr.2019.0936_ref19","doi-asserted-by":"crossref","first-page":"276","DOI":"10.1016\/j.ejrad.2018.09.013","volume":"108","author":"Cho","year":"2018","journal-title":"Eur J Radiol"},{"key":"10.3348\/kjr.2019.0936_ref20","first-page":"541","volume":"133","author":"Bergin","year":"1986","journal-title":"Am Rev Respir Dis"},{"key":"10.3348\/kjr.2019.0936_ref21","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1007\/s00408-008-9071-0","volume":"186","author":"Lee","year":"2008","journal-title":"Lung"},{"key":"10.3348\/kjr.2019.0936_ref22","doi-asserted-by":"crossref","first-page":"384","DOI":"10.1136\/thx.54.5.384","volume":"54","author":"Nakano","year":"1999","journal-title":"Thorax"},{"key":"10.3348\/kjr.2019.0936_ref23","doi-asserted-by":"crossref","first-page":"858","DOI":"10.1183\/09031936.00167908","volume":"34","author":"Grydeland","year":"2009","journal-title":"Eur Respir J"},{"key":"10.3348\/kjr.2019.0936_ref24","first-page":"428","volume":"39","author":"Cho","year":"2015","journal-title":"J Comput Assist Tomogr"},{"key":"10.3348\/kjr.2019.0936_ref25","doi-asserted-by":"crossref","first-page":"304","DOI":"10.3348\/kjr.2018.0204","volume":"20","author":"Park","year":"2019","journal-title":"Korean J Radiol"},{"key":"10.3348\/kjr.2019.0936_ref26","doi-asserted-by":"crossref","first-page":"170","DOI":"10.5455\/aim.2014.22.170-173","volume":"22","author":"Cukic","year":"2014","journal-title":"Acta Inform Med"},{"key":"10.3348\/kjr.2019.0936_ref27","doi-asserted-by":"crossref","first-page":"567","DOI":"10.1148\/radiol.2502080188","volume":"250","author":"de Lange","year":"2009","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref28","doi-asserted-by":"crossref","first-page":"280","DOI":"10.1148\/radiol.10091937","volume":"256","author":"Kirby","year":"2010","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref29","doi-asserted-by":"crossref","first-page":"1095","DOI":"10.1164\/rccm.200709-1322OC","volume":"177","author":"Ohno","year":"2008","journal-title":"Am J Respir Crit Care Med"},{"key":"10.3348\/kjr.2019.0936_ref30","doi-asserted-by":"crossref","first-page":"448","DOI":"10.1007\/s00259-004-1691-x","volume":"32","author":"Stavngaard","year":"2005","journal-title":"Eur J Nucl Med Mol Imaging"},{"key":"10.3348\/kjr.2019.0936_ref31","first-page":"807","volume":"37","author":"Suga","year":"1996","journal-title":"J Nucl Med"},{"key":"10.3348\/kjr.2019.0936_ref32","doi-asserted-by":"crossref","first-page":"799","DOI":"10.1016\/j.acra.2008.02.003","volume":"15","author":"Tzeng","year":"2008","journal-title":"Acad Radiol"},{"key":"10.3348\/kjr.2019.0936_ref33","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1148\/radiol.2017162148","volume":"285","author":"Lee","year":"2017","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref34","doi-asserted-by":"crossref","first-page":"378","DOI":"10.1002\/jmri.1054","volume":"13","author":"Altes","year":"2001","journal-title":"J Magn Reson Imaging"},{"key":"10.3348\/kjr.2019.0936_ref35","doi-asserted-by":"crossref","first-page":"381","DOI":"10.1016\/j.jaci.2011.11.017","volume":"129","author":"Farah","year":"2012","journal-title":"J Allergy Clin Immunol"},{"key":"10.3348\/kjr.2019.0936_ref36","doi-asserted-by":"crossref","first-page":"471","DOI":"10.3109\/15412555.2015.1102874","volume":"13","author":"Gao","year":"2016","journal-title":"COPD"},{"key":"10.3348\/kjr.2019.0936_ref37","first-page":"947","volume":"10","author":"Suzuki","year":"2015","journal-title":"Int J Chron Obstruct Pulmon Dis"},{"key":"10.3348\/kjr.2019.0936_ref38","doi-asserted-by":"crossref","first-page":"1335","DOI":"10.4187\/respcare.02175","volume":"58","author":"Kosciuch","year":"2013","journal-title":"Respir Care"},{"key":"10.3348\/kjr.2019.0936_ref39","doi-asserted-by":"crossref","first-page":"1154","DOI":"10.1002\/mrm.22697","volume":"65","author":"Kaushik","year":"2011","journal-title":"Magn Reson Med"},{"key":"10.3348\/kjr.2019.0936_ref40","doi-asserted-by":"crossref","first-page":"600","DOI":"10.1148\/radiol.12120485","volume":"265","author":"Kirby","year":"2012","journal-title":"Radiology"},{"key":"10.3348\/kjr.2019.0936_ref41","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1016\/j.anai.2013.04.019","volume":"111","author":"Jung","year":"2013","journal-title":"Ann Allergy Asthma Immunol"},{"key":"10.3348\/kjr.2019.0936_ref42","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1097\/RLI.0b013e318274b0df","volume":"47","author":"Lee","year":"2012","journal-title":"Invest Radiol"}],"container-title":["Korean Journal of Radiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/kjronline.org\/pdf\/10.3348\/kjr.2019.0936","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/kjronline.org\/DOIx.php?id=10.3348\/kjr.2019.0936","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/kjronline.org\/DOIx.php?id=10.3348\/kjr.2019.0936","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,7,17]],"date-time":"2020-07-17T01:24:12Z","timestamp":1594949052000},"score":1,"resource":{"primary":{"URL":"https:\/\/kjronline.org\/DOIx.php?id=10.3348\/kjr.2019.0936"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020]]},"references-count":42,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2020]]}},"URL":"https:\/\/doi.org\/10.3348\/kjr.2019.0936","relation":{},"ISSN":["1229-6929","2005-8330"],"issn-type":[{"value":"1229-6929","type":"print"},{"value":"2005-8330","type":"electronic"}],"subject":[],"published":{"date-parts":[[2020]]},"assertion":[{"value":"2019-12-12","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-03-11","name":"revised","label":"Revised","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-03-22","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-07-02","name":"published_online","label":"Published online","group":{"name":"publication_history","label":"Publication History"}},{"value":"Copyright \u00a9 2020 The Korean Society of Radiology","name":"copyright","label":"Copyright","group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.","name":"license","label":"License","explanation":{"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},"group":{"name":"Copyright_and_licensing","label":"Copyright and Licensing"}}]}}