{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,9]],"date-time":"2026-05-09T02:23:10Z","timestamp":1778293390048,"version":"3.51.4"},"reference-count":19,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2009,2,25]],"date-time":"2009-02-25T00:00:00Z","timestamp":1235520000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2009,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the utility of breathhold time\u2010resolved three\u2010directional MR velocity mapping for quantifying the restoration of normal flow patterns in patients after aortic valve\u2010sparing surgery.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Breathhold time\u2010resolved three\u2010directional MR velocity mapping was performed on 13 patients with aortic valve\u2010sparing surgery. Ten healthy volunteers and 12 patients with ascending aortic aneurysm underwent the same MR examination for comparison. Aortic laminar flow, turbulent flow, and the presence of vortical flow in the sinuses of Valsalva were semiquantitatively assessed and statistically compared between the three groups of subjects.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The average score of laminar flow in the ascending aorta for patients with surgery was not significantly different from that of volunteers (<jats:italic>P<\/jats:italic> = 0.210), but was significantly greater than that of patients with aneurysm (<jats:italic>P<\/jats:italic> &lt; 0.01). The average score of turbulent flow in patients with surgery was significantly smaller than that of patients with aneurysm (<jats:italic>P<\/jats:italic> &lt; 0.01). The presence of systolic vortical flow in the sinuses of Valsalva for patients with surgery was not significantly different from that of healthy volunteers (<jats:italic>P<\/jats:italic> = 0.405) and patients with aneurysm (<jats:italic>P<\/jats:italic> = 0.238).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Breathhold time\u2010resolved three\u2010directional MR velocity mapping allows for quantifying flow patterns in the aortic root and ascending aorta. Normal laminar flow in the ascending aorta and vortical flow in the sinuses of Valsalva can be restored in patients after aortic valve\u2010sparing surgery. J. Magn. Reson. Imaging 2009;29:569\u2013575. \u00a9 2009 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.21685","type":"journal-article","created":{"date-parts":[[2010,7,19]],"date-time":"2010-07-19T17:09:23Z","timestamp":1279559363000},"page":"569-575","source":"Crossref","is-referenced-by-count":11,"title":["Breathhold time\u2010resolved three\u2010directional MR velocity mapping of aortic flow in patients after aortic valve\u2010sparing surgery"],"prefix":"10.1002","volume":"29","author":[{"given":"Xin","family":"Liu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peter","family":"Weale","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gert","family":"Reiter","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aya","family":"Kino","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Karin","family":"Dill","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas","family":"Gleason","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tim","family":"Carroll","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James","family":"Carr","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,2,25]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.athoracsur.2004.03.040"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2006.03.053"},{"key":"e_1_2_5_4_2","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1016\/S0022-5223(19)34225-4","article-title":"Remodelling of the aortic valve annulus","volume":"105","author":"Sarsam MAI","year":"1993","journal-title":"J Thorac Cardiovasc Surg"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijcard.2004.08.010"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1038\/217086b0"},{"key":"e_1_2_5_7_2","first-page":"114","article-title":"Valve opening and closing dynamics after different aortic valve\u2010sparing operations","volume":"14","author":"Aybek T","year":"2005","journal-title":"J Heart Valve Dis"},{"issue":"11","key":"e_1_2_5_8_2","first-page":"I264","article-title":"Functional anatomy of aortic regurgitation: accuracy, prediction of surgical repairability, and outcome implications of transesophageal echocardiography","volume":"116","author":"de Waroux JB","year":"2007","journal-title":"Circulation"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2005-865684"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2412041866"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.1161\/01.CIR.88.5.2235"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-5223(95)70102-8"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1522-2586(199911)10:5<861::AID-JMRI35>3.0.CO;2-E"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1161\/CIRCULATIONAHA.105.574103"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.20871"},{"key":"e_1_2_5_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2004.08.056"},{"key":"e_1_2_5_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2003.10.042"},{"key":"e_1_2_5_18_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.21082"},{"key":"e_1_2_5_19_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jtcvs.2005.02.016"},{"key":"e_1_2_5_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejcts.2007.02.038"}],"container-title":["Journal of Magnetic Resonance Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjmri.21685","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jmri.21685","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T00:30:57Z","timestamp":1696897857000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jmri.21685"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,2,25]]},"references-count":19,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2009,3]]}},"alternative-id":["10.1002\/jmri.21685"],"URL":"https:\/\/doi.org\/10.1002\/jmri.21685","archive":["Portico"],"relation":{},"ISSN":["1053-1807","1522-2586"],"issn-type":[{"value":"1053-1807","type":"print"},{"value":"1522-2586","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,2,25]]}}}