{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T04:30:37Z","timestamp":1767846637174,"version":"3.49.0"},"reference-count":40,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2018,9,19]],"date-time":"2018-09-19T00:00:00Z","timestamp":1537315200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"crossref","award":["2042016kf0117"],"award-info":[{"award-number":["2042016kf0117"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Clinical Ultrasound"],"published-print":{"date-parts":[[2018,10]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>The availability of dual Doppler echocardiography (DDE), which facilitates the simultaneous recording of Doppler waveforms at two different sites, has enhanced ability to assess single\u2010beat atrial mechanical delay. We sought to investigate the predictive value of intra\u2010left atrial mechanical delay for atrial fibrillation (AF) recurrence after radiofrequency catheter ablation (RFCA) with DDE.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Eighty\u2010six patients with paroxysmal AF scheduled to undergo RFCA were prospectively enrolled. Intra\u2010atrial and interatrial mechanical delays were evaluated by DDE and traditional tissue Doppler imaging (tTDI), respectively. The time of whole analysis process with each method was recorded. After RFCA, patients were followed for 1 year.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Thirty (34.88%) patients had AF recurrence, and 56 (65.12%) patients maintained sinus rhythm. Cut\u2010off values of 39.38\u2009ms for intra\u2010left atrial mechanical delay obtained by DDE and 32.70\u2009ms by tTDI predicted AF recurrence. Areas under curves were comparable in receiver operator characteristic analysis (<jats:italic>P<\/jats:italic> &gt;\u2009.05). The whole analysis time of DDE was less than tTDI. Parameters obtained by DDE had better reproducibility.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Intra\u2010left atrial mechanical delay best predicted 1\u2010year AF recurrence after RFCA. Compared with tTDI, DDE can noninvasively assess single\u2010beat atrial mechanical delay with high predictive power, less analysis time, and better reproducibility.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jcu.22629","type":"journal-article","created":{"date-parts":[[2018,9,19]],"date-time":"2018-09-19T12:19:54Z","timestamp":1537359594000},"page":"519-526","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["The predictive value of intra\u2010left atrial mechanical delay for 1\u2010year recurrence of atrial fibrillation after catheter ablation: A clinical follow\u2010up study using dual Doppler echocardiography"],"prefix":"10.1002","volume":"46","author":[{"given":"Yanxiang","family":"Zhou","sequence":"first","affiliation":[{"name":"Department of Ultrasound Imaging Renmin Hospital of Wuhan University  Wuhan Hubei People's Republic of 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