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Abstract #2867

Real-Time Cardiac Functional Imaging Using an Arrhythmia-Robust Radial Imaging Sequence

André Fischer1,2, Peng Lai3, James H. Holmes4,5, Ty A. Cashen4,5, Kevin M. Johnson5,6, Anne Menini1, Christopher J. Francois5, Anja C.S. Brau3, and El-Sayed Ibrahim7

1GE Global Research Europe, Garching bei München, Germany, 2Cardiac Center of Excellence, GE Healthcare, Garching bei München, Germany, 3GE Healthcare, Menlo Park, CA, United States, 4GE Healthcare, Madison, WI, United States, 5Radiology, University of Wisconsin - Madison, Madison, WI, United States, 6Medical Physics, University of Wisconsin - Madison, Madison, WI, United States, 7GE Healthcare, Waukesha, WI, United States

Cardiac cine datasets are difficult to obtain in the presence of arrhythmia or poor gating signal. Here, completely ungated radial real-time imaging may help. Cartesian real-time imaging usually offers compromised spatial resolution to maintain sufficient temporal resolution. Hence, we propose a radial bSSFP-based real-time approach with Golden Angle increment which enables view sharing of temporally adjacent projections. To minimize temporal blurring, a narrow tornado shaped filter, followed by subsequent iterative SENSE reconstruction, was used. Remaining streaking artifacts were reduced by a principal component analysis based technique. Results show good agreement in terms of image quality to a standard Cartesian cine dataset.

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