{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T01:00:17Z","timestamp":1747184417926,"version":"3.40.5"},"reference-count":24,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2019,5,13]],"date-time":"2019-05-13T00:00:00Z","timestamp":1557705600000},"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":["Echocardiography"],"published-print":{"date-parts":[[2019,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>Phase\u2010contrast cardiovascular magnetic resonance (<jats:styled-content style=\"fixed-case\">PC<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">CMR<\/jats:styled-content>) quantification of intracardiac shunt (measuring the pulmonary to systemic flow ratio, Qp\/Qs) is typically determined by measuring flow through planes perpendicular the pulmonary trunk (<jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content>) and ascending aorta (Ao). This method is subject to error from presence of background velocity offsets and requires two scan acquisitions. We evaluated an alternate <jats:styled-content style=\"fixed-case\">PC<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">CMR<\/jats:styled-content> technique for quantifying Qp\/Qs using a single modified plane that encompasses both the <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> and Ao.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>In 53 patients evaluated for intracardiac shunting, <jats:styled-content style=\"fixed-case\">PC<\/jats:styled-content>\u2010<jats:styled-content style=\"fixed-case\">CMR<\/jats:styled-content> measurement in the individual Ao and <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> planes and also in a single\u2010acquisition plane was obtained and Qp\/Qs calculated by each method. Bland\u2013Altman analysis was performed to evaluate the agreement between the two methods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The 95% confidence limits of agreement ranged from \u22120.52 to +0.34 indicating good agreement between the two methods. There was excellent agreement on the clinically relevant threshold value of Qp\/Qs ratio of 1.5 (representing criteria for surgical correction of shunt).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Qp\/Qs determined from the single\u2010acquisition approach agrees well with that of the individual <jats:styled-content style=\"fixed-case\">PA<\/jats:styled-content> and Ao method and offers potential improved accuracy (due to background velocity offset).<\/jats:p><\/jats:sec>","DOI":"10.1111\/echo.14358","type":"journal-article","created":{"date-parts":[[2019,5,14]],"date-time":"2019-05-14T04:58:18Z","timestamp":1557809898000},"page":"1181-1190","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Quantification of pulmonary\/systemic shunt ratio by single\u2010acquisition phase\u2010contrast cardiovascular magnetic resonance"],"prefix":"10.1111","volume":"36","author":[{"suffix":"II","given":"Terence Sean","family":"Dunn","sequence":"first","affiliation":[{"name":"Department of Medicine University of Alabama at Birmingham Birmingham Alabama"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pratik","family":"Patel","sequence":"additional","affiliation":[{"name":"Department of Medicine University of Alabama at Birmingham Birmingham Alabama"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bassem","family":"Abazid","sequence":"additional","affiliation":[{"name":"Department of Medicine University of Alabama at Birmingham Birmingham Alabama"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hosakote M.","family":"Nagaraj","sequence":"additional","affiliation":[{"name":"Department of Medicine University of Alabama at Birmingham Birmingham Alabama"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ravi 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