{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T22:17:45Z","timestamp":1769638665063,"version":"3.49.0"},"reference-count":28,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2007,9,25]],"date-time":"2007-09-25T00:00:00Z","timestamp":1190678400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2007,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To characterize the range of biventricular size and function evaluated by steady\u2010state free precession (SSFP) cine magnetic resonance (MR) in a large cohort of patients with repaired tetralogy of Fallot (TOF), and to compare these measurements in those with a right ventricular outflow tract (RVOT) patch vs. a right ventricle\u2010to\u2010pulmonary artery (RV\u2010PA) conduit.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Analysis of ventricular size and function in 300 consecutive examinations in patients with repaired TOF evaluated by SSFP cine MR.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the 300 examinations performed in 256 patients, 69% had undergone repair with a RVOT patch and 31% with a RV\u2010PA conduit. Compared to patients with RV\u2010PA conduit, those with a RVOT patch had significantly more pulmonary regurgitation (PR) (38 \u00b1 17 vs. 23 \u00b1 16%, <jats:italic>P<\/jats:italic> &lt; 0.0001), larger indexed RV end\u2010diastolic volume (154 \u00b1 53 vs. 133 \u00b1 51 mL\/m<jats:sup>2<\/jats:sup>, <jats:italic>P<\/jats:italic> = 0.002), similar indexed end\u2010systolic volume (80 \u00b1 39 vs. 74 \u00b1 46 mL\/m<jats:sup>2<\/jats:sup>, <jats:italic>P<\/jats:italic> = 0.31), higher ejection fraction (EF) (50 \u00b1 9 vs. 47 \u00b1 12%, <jats:italic>P<\/jats:italic> = 0.037), and lower mass\u2010to\u2010volume ratio (0.29 \u00b1 0.08 vs. 0.36 \u00b1 0.13, <jats:italic>P<\/jats:italic> &lt; 0.0001). Pulmonary regurgitation fraction correlated positively with RV end\u2010diastolic volume index in the RVOT patch group (r = 0.51, <jats:italic>P<\/jats:italic> &lt; 0.0001) but not in the RV\u2010PA conduit.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study provides the range and distribution of biventricular size and function, and PR measured by MRI in a large contemporary cohort of patients with repaired TOF, and demonstrates important variations in RV mechanics between patients repaired with a RVOT patch and those with an RV\u2010PA conduit. J. Magn. Reson. 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