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

Synopsis

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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