{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T02:26:03Z","timestamp":1740104763945,"version":"3.37.3"},"reference-count":30,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2016,3,17]],"date-time":"2016-03-17T00:00:00Z","timestamp":1458172800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100006279","name":"St Jude Medical","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100006279","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Medtronic NL"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>To develop feature tracking (FT) software to perform strain analysis on conventional (nontagged) cardiac magnetic resonance imaging (MRI) function images. With the advent of MRI\u2010conditional pacemaker systems, effects of cardiac pacing on myocardial strain can be studied using MR. In this study the impact of pacing on left ventricular (LV) strain was investigated using MR\u2010FT in patients with an MRI\u2010conditional cardiac implantable electronic device (CIED).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>FT was performed on 32 1.5T MR studies (16 patients with an MRI\u2010conditional CIED and 16 control patients with normal scans). Short\u2010 and long\u2010axis steady state free precession (SSFP) cines were used for the FT analysis. Strain was assessed using CVI<jats:sup>42<\/jats:sup> software (Circle Cardiovascular Imaging, Alberta, Canada). In addition, the intra\u2010 and interobserver variability was determined using the intraclass correlation coefficient.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the 16 patients with an MRI\u2010conditional CIED, five patients were paced during the MRI exam. Despite the occasional presence of susceptibility artifacts induced by the CIED, radial, circumferential, and longitudinal strain parameters could be derived for all patients. Peak radial strain and peak circumferential strain were reduced during pacing when compared to the control group; for radial strain: 20.1 \u00b1 4.7% vs. 33.1 \u00b1 6.9%, <jats:italic>P<\/jats:italic> &lt; 0.001, and for circumferential strain \u20137.5 \u00b1 3.5% vs. \u201314.9 \u00b1 3.2%, <jats:italic>P<\/jats:italic> &lt; 0.05. Peak strain parameters were reproducible on an intra\u2010 and interobserver level.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>MR\u2010FT is feasible in patients with an MRI\u2010conditional CIED and can be used to quantify regional wall motion. J. MAGN. RESON. IMAGING 2016;44:964\u2013971.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.25229","type":"journal-article","created":{"date-parts":[[2016,3,19]],"date-time":"2016-03-19T07:09:49Z","timestamp":1458371389000},"page":"964-971","source":"Crossref","is-referenced-by-count":2,"title":["MR feature tracking in patients with MRI\u2010conditional pacing systems: The impact of pacing"],"prefix":"10.1002","volume":"44","author":[{"given":"A.W. 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