{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T15:37:38Z","timestamp":1777477058263,"version":"3.51.4"},"reference-count":32,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T00:00:00Z","timestamp":1678147200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Can Assoc Radiol J"],"published-print":{"date-parts":[[2023,11]]},"abstract":"<jats:p>\n                    <jats:bold>Purpose:<\/jats:bold>\n                    To evaluate the feasibility and usefulness of T1 and T2 mapping in characterization of mediastinal masses.\n                    <jats:bold>Methods:<\/jats:bold>\n                    From August 2019 through December 2021, 47 patients underwent 3.0-T chest MRI with T1 and post-contrast T1 mapping using modified look-locker inversion recovery sequences and T2 mapping using a T2-prepared single-shot shot steady-state free precession technique. Mean native T1, native T2, and post-contrast T1 values were measured by drawing the region of interest in the mediastinal masses, and enhancement index (EI) was calculated using these values.\n                    <jats:bold>Results:<\/jats:bold>\n                    All mapping images were acquired successfully, without significant artifact. There were 25 thymic epithelial tumors (TETs), 3 schwannomas, 6 lymphomas, and 9 thymic cysts, and 4 other cystic tumors. TET, schwannoma, and lymphoma were grouped together as \u201csolid tumor,\u201d to be compared with thymic cysts and other tumors (\u201ccystic tumors\u201d). The mean post-contrast T1 mapping (\n                    <jats:italic>P<\/jats:italic>\n                    &lt; .001), native T2 mapping (\n                    <jats:italic>P<\/jats:italic>\n                    &lt; .001), and EI (\n                    <jats:italic>P<\/jats:italic>\n                    &lt; .001) values showed significant difference between these two groups. Among TETs, high risk TETs (thymoma types B2, B3, and thymic carcinoma) showed significantly higher native T2 mapping values (P = .002) than low risk TETs (thymoma types A, B1, and AB). For all measured variables, interrater reliability was good to excellent (intraclass coefficient [ICC]: .869\u223c.990) and intrarater reliability was excellent (ICC: .911\u223c.995).\n                    <jats:bold>Conclusion:<\/jats:bold>\n                    The use of T1 and T2 mapping in MRI of mediastinal masses is feasible and may provide additional information in the evaluation of mediastinal masses.\n                  <\/jats:p>","DOI":"10.1177\/08465371231160052","type":"journal-article","created":{"date-parts":[[2023,3,7]],"date-time":"2023-03-07T22:39:43Z","timestamp":1678228783000},"page":"723-736","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["T1 and T2 Mapping for Characterization of Mediastinal Masses: A Feasibility study"],"prefix":"10.1177","volume":"74","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9262-1001","authenticated-orcid":false,"given":"Kyongmin S.","family":"Beck","sequence":"first","affiliation":[{"name":"Department of Radiology, College of Medicine, The Catholic University of Korea, Banpo-daero, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9221-8116","authenticated-orcid":false,"given":"Suyon","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Radiology, College of Medicine, The Catholic University of Korea, Banpo-daero, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kwanyong","family":"Hyun","sequence":"additional","affiliation":[{"name":"Department of Thoracic and Cardiovascular Surgery, College of Medicine, The Catholic University of Korea, Banpo-daero, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yeoun Eun","family":"Sung","sequence":"additional","affiliation":[{"name":"Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kyo-Young","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea"},{"name":"Department of Pathology, Konkuk University Chungju Hospital, Konkuk University School of Medicine, Chungju, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jung Im","family":"Jung","sequence":"additional","affiliation":[{"name":"Department of Radiology, College of Medicine, The Catholic University of Korea, Banpo-daero, Seoul, Republic of 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