{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T14:44:10Z","timestamp":1740149050911,"version":"3.37.3"},"reference-count":27,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2017,8,1]],"date-time":"2017-08-01T00:00:00Z","timestamp":1501545600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Med Imag Rad Onc"],"published-print":{"date-parts":[[2018,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>The purpose of this study was to obtain a range of normal measurements of the adult thoracic aorta and main pulmonary artery using cardiac <jats:styled-content style=\"fixed-case\">MRI<\/jats:styled-content>, and to assess agreement between measurements made on <jats:styled-content style=\"fixed-case\">ECG<\/jats:styled-content>\u2010gated two\u2010dimensional (2D) breath held steady\u2010state\u2010free precession (<jats:styled-content style=\"fixed-case\">SSFP<\/jats:styled-content>), and three\u2010dimensional (3D) breath held <jats:styled-content style=\"fixed-case\">SSFP<\/jats:styled-content> image acquisitions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Forty\u2010nine normal volunteers underwent cardiac <jats:styled-content style=\"fixed-case\">MRI<\/jats:styled-content> using a 1.5T system. Two independent examiners measured the ascending aorta, aortic arch, descending thoracic aorta and main pulmonary artery in pre\u2010defined locations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Overall, inter\u2010observer agreement for all measurements was excellent. Close agreement was observed in aortic diameters obtained from the 2D and 3D <jats:styled-content style=\"fixed-case\">SSFP<\/jats:styled-content> methods in six of the nine aortic measurement sites. There was a tendency for the 3D measurements to be smaller than the 2D measurements but this was only significant at two sites, the aortic annulus, and the ascending aorta. There was a significance difference in aortic measurements between the left carotid artery (<jats:styled-content style=\"fixed-case\">LC<\/jats:styled-content>) and the left subclavian artery (<jats:styled-content style=\"fixed-case\">LSC<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Normal values for transverse diameters of the thoracic aorta and main pulmonary artery were established using 2D and 3D non\u2010contrast <jats:styled-content style=\"fixed-case\">MR<\/jats:styled-content> sequences in healthy adults. Overall both inter\u2010observer agreement, and agreement between 2D and 3D techniques was good. Mean diameter differences demonstrated at the aortic annulus, ascending aorta and aortic arch between <jats:styled-content style=\"fixed-case\">LC<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">LSC<\/jats:styled-content> although significant were less than one millimetre and unlikely to be important in clinical practice.<\/jats:p><\/jats:sec>","DOI":"10.1111\/1754-9485.12637","type":"journal-article","created":{"date-parts":[[2017,8,1]],"date-time":"2017-08-01T09:37:53Z","timestamp":1501580273000},"page":"64-71","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["MRI measurements of the thoracic aorta and pulmonary artery"],"prefix":"10.1111","volume":"62","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4783-0784","authenticated-orcid":false,"given":"Leyla","family":"Beck","sequence":"first","affiliation":[{"name":"The Prince Charles Hospital Brisbane Queensland Australia"},{"name":"Sunshine 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