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Abstract #1847

Biventricular function using a novel real-time free-breathing compressed sensing cine sequence with  R-R normalization and motion correction

Ahmed S Negm1, Jianing Pang2, Kiaran Mcgee1, Holly Iverson1, Maria Halverson1, Rachel Davids2, Prabhakar Rajiah1, Alexander Bratt1, Eric Williamson1, Phillip Young1, Thomas Foley1, Tim Leiner1, Christopher Francois1, Xiaoming Bi2, and Jeremy Collins3
1Radiology, Mayo Clinic, Rochester, MN, United States, 2Siemens Healthineers, Chicago, IL, United States, 3Mayo Clinic, Rochester, MN, United States


CMR is the gold standard for assessing biventricular size and function. bSSFP Seg Cine is a standard cine method, but requires breath-holding which prolongs table time and limits utility in dyspneic patients. A novel real-time technique RTCSCineMoCo combines free-breathing acquisition with compressed sensing and motion correction. In 100 subjects RTCSCineMoCo generated similar results to Seg Cine for LVEF, LV end-diastolic mass, and RVESV with agreement including no difference at Bland-Altman analysis for all LV and RV measures. The shorter table time for RTCSCineMoCo and ability to robustly image dyspneic patients are important enhancements for clinical practice.

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