{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T00:32:02Z","timestamp":1792801922820,"version":"4.5.0"},"reference-count":29,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T00:00:00Z","timestamp":1697673600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2024,8]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Breath\u2010holding (BH) for cine balanced steady state free precession (bSSFP) imaging is challenging for patients with impaired BH capacity. Deep learning\u2010based reconstruction (DLR) of undersampled k\u2010space promises to shorten BHs while preserving image quality and accuracy of ventricular assessment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To perform a systematic evaluation of DLR of cine bSSFP images from undersampled k\u2010space over a range of acceleration factors.<\/jats:p><\/jats:sec><jats:sec><jats:title>Study Type<\/jats:title><jats:p>Retrospective.<\/jats:p><\/jats:sec><jats:sec><jats:title>Subjects<\/jats:title><jats:p>Fifteen pectus excavatum patients (mean age 16.8\u2009\u00b1\u20095.4\u2009years, 20% female) with normal cardiac anatomy and function and 12\u2010second BH capability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Field Strength\/Sequence<\/jats:title><jats:p>1.5\u2010T, cine bSSFP.<\/jats:p><\/jats:sec><jats:sec><jats:title>Assessment<\/jats:title><jats:p>Retrospective DLR was conducted by applying compressed sensitivity encoding (C\u2010SENSE) acceleration to systematically undersample fully sampled k\u2010space cine bSSFP acquisition data over an acceleration\/undersampling factor (<jats:italic>R<\/jats:italic>) considering a range of 2 to 8. Quality imperceptibility (QI) measures, including structural similarity index measure, were calculated using images reconstructed from fully sampled k\u2010space as a reference. Image quality, including contrast and edge definition, was evaluated for diagnostic adequacy by three readers with varying levels of experience in cardiac MRI (&gt;4\u2009years, &gt;18\u2009years, and 1\u2009year). Automated DL\u2010based biventricular segmentation was performed commercially available software by cardiac radiologists with more than 4\u2009years of experience.<\/jats:p><\/jats:sec><jats:sec><jats:title>Statistical Tests<\/jats:title><jats:p>Tukey box plots, linear mixed effects model, analysis of variance (ANOVA), weighted kappa, Kruskal\u2013Wallis test, and Wilcoxon signed\u2010rank test were employed as appropriate. A <jats:italic>P<\/jats:italic>\u2010value &lt;0.05 was considered statistically significant.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a significant decrease in the QI values and edge definition scores as <jats:italic>R<\/jats:italic> increased. Diagnostically adequate image quality was observed up to <jats:italic>R<\/jats:italic>\u2009=\u20095. The effect of <jats:italic>R<\/jats:italic> on all biventricular volumetric indices was non\u2010significant (<jats:italic>P<\/jats:italic>\u2009=\u20090.447).<\/jats:p><\/jats:sec><jats:sec><jats:title>Data Conclusion<\/jats:title><jats:p>The biventricular volumetric indices obtained from the reconstruction of fully sampled cine bSSFP acquisitions and DLR of the same k\u2010space data undersampled by C\u2010SENSE up to <jats:italic>R<\/jats:italic>\u2009=\u20095 may be comparable.<\/jats:p><\/jats:sec><jats:sec><jats:title>Evidence Level<\/jats:title><jats:p>3<\/jats:p><\/jats:sec><jats:sec><jats:title>Technical Efficacy<\/jats:title><jats:p>Stage 1<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.29081","type":"journal-article","created":{"date-parts":[[2023,10,19]],"date-time":"2023-10-19T10:45:39Z","timestamp":1697712339000},"page":"640-650","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":26,"title":["Accelerated Cine Cardiac 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