{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T01:00:25Z","timestamp":1786323625585,"version":"build-2736575974"},"reference-count":20,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2019,7,9]],"date-time":"2019-07-09T00:00:00Z","timestamp":1562630400000},"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":[[2019,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Measurement of the mitral valve area (<jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content>) in patients with mitral stenosis (<jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content>) by 3D echocardiography (3<jats:styled-content style=\"fixed-case\">DE<\/jats:styled-content>) is usually done via 3D quantification (3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content>). The present study on patients with severe <jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content> sought to evaluate the agreement regarding the <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measurement between 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> and direct planimetry on 3D zoom and also between 3<jats:styled-content style=\"fixed-case\">DE<\/jats:styled-content> and 2<jats:styled-content style=\"fixed-case\">DE<\/jats:styled-content>.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Twenty\u2010six patients (22 female, mean age:34.5\u00a0\u00b1\u00a014.0\u00a0years) with severe <jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content> diagnosed by 2D transthoracic echocardiography(2<jats:styled-content style=\"fixed-case\">DTTE<\/jats:styled-content>) underwent 3D transesophageal echocardiography (3<jats:styled-content style=\"fixed-case\">DTEE<\/jats:styled-content>). Direct planimetry, the pressure half\u2010time (<jats:styled-content style=\"fixed-case\">PTH<\/jats:styled-content>), and the continuity equation(<jats:styled-content style=\"fixed-case\">CE<\/jats:styled-content>) constituted 3 conventional 2<jats:styled-content style=\"fixed-case\">DTTE<\/jats:styled-content> methods, and 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> and direct planimetry on 3D zoom comprised two 3<jats:styled-content style=\"fixed-case\">DTEE<\/jats:styled-content> methods applied for the <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measurement. Agreement between the 2D and 3D methods was assessed using the Bland\u2013Altman plot and measuring the intra\u2010class correlation coefficient (<jats:styled-content style=\"fixed-case\">ICC<\/jats:styled-content>).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measured by 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> was significantly larger than that derived by direct planimetry on 3D zoom (0.935\u00a0\u00b1\u00a00.23\u00a0cm<jats:sup>2<\/jats:sup> vs 0.846\u00a0\u00b1\u00a00.22\u00a0cm<jats:sup>2<\/jats:sup>, respectively; <jats:italic>P\u00a0<\/jats:italic>=<jats:italic>\u00a0<\/jats:italic>0.026). The agreement between 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> and 3D zoom for the <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measurement was moderate to good by the Bland\u2013Altman plot (<jats:styled-content style=\"fixed-case\">ICC<\/jats:styled-content>\u00a0=\u00a00.67). The mean <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measured by 2<jats:styled-content style=\"fixed-case\">DE<\/jats:styled-content> (all 3 methods of direct planimetry, the <jats:styled-content style=\"fixed-case\">PTH<\/jats:styled-content>, and the <jats:styled-content style=\"fixed-case\">CE<\/jats:styled-content>) was significantly larger than that derived by 3<jats:styled-content style=\"fixed-case\">DE<\/jats:styled-content> (both methods of 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> and direct planimetry on 3D zoom) (all <jats:italic>Ps\u00a0<\/jats:italic>&lt;<jats:italic>\u00a0<\/jats:italic>0.05). A moderate agreement between 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content> and 2D planimetry (<jats:styled-content style=\"fixed-case\">ICC<\/jats:styled-content>\u00a0=\u00a00.43) was found by the Bland\u2013Altman plot.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> measurement by direct planimetry on 3D zoom showed a moderate\u2010to\u2010good agreement with 3<jats:styled-content style=\"fixed-case\">DQ<\/jats:styled-content>; it may, thus, be used in clinical practice as a simple method for the measurement of the <jats:styled-content style=\"fixed-case\">MVA<\/jats:styled-content> in patients with <jats:styled-content style=\"fixed-case\">MS<\/jats:styled-content>.<\/jats:p><\/jats:sec>","DOI":"10.1111\/echo.14397","type":"journal-article","created":{"date-parts":[[2019,7,9]],"date-time":"2019-07-09T15:05:22Z","timestamp":1562684722000},"page":"1509-1514","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Measurement of mitral valve area in patients with mitral stenosis by 3D echocardiography: A comparison between direct planimetry on 3D zoom and 3D quantification"],"prefix":"10.1111","volume":"36","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8529-0622","authenticated-orcid":false,"given":"Hakimeh","family":"Sadeghian","sequence":"first","affiliation":[{"name":"Echocardiography Department Dr Shariati Hospital Tehran University of Medical Science Tehran Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mehrnaz","family":"Rezvanfard","sequence":"additional","affiliation":[{"name":"Research Department Tehran 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