{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T15:59:47Z","timestamp":1791215987645,"version":"4.1.0"},"reference-count":37,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T00:00:00Z","timestamp":1770249600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,2,5]],"date-time":"2026-02-05T00:00:00Z","timestamp":1770249600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R01HL127153"],"award-info":[{"award-number":["R01HL127153"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Magnetic Resonance in Med"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To improve cardiac motion representation and reduce artifacts for cardiac\u2010 and respiratory\u2010resolved imaging through a synergistic combination of retrospective cardiac phased array RF focusing and rigid respiratory motion compensation (MoCo).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      We incorporated cardiac receive focusing using region\u2010optimized virtual coils (ROVir) and MoCo into cardiac\u2010 and respiratory\u2010resolved low\u2010rank tensor (LRT) reconstruction, hypothesizing that the combination of MoCo\u2009+\u2009ROVir would prioritize the LRT representation of cardiac motion over respiratory motion. We compared LRT, MoCo\u2010LRT, ROVir\u2010LRT, and the proposed MoCo\u2009+\u2009ROVir\u2010LRT reconstructions of retrospective data from\n                      <jats:italic>N\u2009=<\/jats:italic>\n                      \u200924 pediatric patients with congenital heart disease (CHD) scanned at 3.0\u2009T using ROCK\u2010MUSIC. Technical evaluation metrics included the proportion of cardiac\u2010to\u2010respiratory motion energy in self\u2010gating lines, cardiac motion priority in the temporal basis, flickering energy, and edge sharpness in end\u2010expiratory cardiac cine. Reconstructed cardiac cines were scored by two expert image readers.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      MoCo\u2009+\u2009ROVir significantly increased the proportion of cardiac\u2010to\u2010respiratory motion energy in self\u2010gating lines (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001) and prioritized cardiac motion in the temporal basis (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). MoCo + ROVir reduced flickering energy in cardiac cine images (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), sharpened the liver\u2013lung interface (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001), and improved flickering\u2010specific scores (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.001). Myocardium\u2013blood pool interface sharpness (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.831), cardiac\u2010specific image scores (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.188), and vascular\u2010specific scores (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.901) were not significantly different. Together, these two techniques allowed 3.7\u20135.2\u00d7 faster reconstruction times versus LRT\u2010only.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The synergy of MoCo\u2009+\u2009ROVir successfully prioritized cardiac motion, suppressed respiratory motion, and reduced flickering artifacts, with an added benefit of accelerating reconstruction times. The improved respiratory motion handling may provide an avenue for free\u2010breathing cardiac scans in pediatric patients with CHD.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/mrm.70280","type":"journal-article","created":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T04:30:44Z","timestamp":1770352244000},"page":"3227-3240","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["<scp>MoCo<\/scp>\n                    \u2009+\u2009\n                    <scp>ROVir<\/scp>\n                    : Synergy Between Respiratory Motion Compensation and Cardiac Receive Region Focusing for Cardiac\n                    <scp>MRI<\/scp>"],"prefix":"10.1002","volume":"95","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0276-8254","authenticated-orcid":false,"given":"Zheyuan","family":"Hu","sequence":"first","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"},{"name":"Department of Bioengineering University of California, Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hsu\u2010Lei","family":"Lee","sequence":"additional","affiliation":[{"name":"Biomedical Imaging Research Institute, Cedars\u2010Sinai Medical Center  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3739-3103","authenticated-orcid":false,"given":"Tianle","family":"Cao","sequence":"additional","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"},{"name":"Department of Bioengineering University of California, Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takegawa","family":"Yoshida","sequence":"additional","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-5620-5597","authenticated-orcid":false,"given":"Lingceng","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. Paul","family":"Finn","sequence":"additional","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"},{"name":"Physics in Biology and Medicine Interdepartmental Program, UCLA Graduate Programs in Bioscience University of California, Los Angeles  Los Angeles California USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8854-2976","authenticated-orcid":false,"given":"Kim\u2010Lien","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Department of Radiological Sciences David Geffen School of Medicine at UCLA  Los Angeles California USA"},{"name":"Department of Bioengineering University of California, Los Angeles  Los Angeles California USA"},{"name":"Physics in Biology and Medicine Interdepartmental Program, UCLA Graduate Programs in Bioscience University of California, Los Angeles  Los Angeles California USA"},{"name":"Division of Cardiology David 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