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Abstract #3776

Feasibility of Dynamic 4D Whole Heart Viability Imaging Within a Single Breath-Hold Using Highly Accelerated Parallel Imaging and Compressed Sensing

Jian Xu1, 2, Li Feng1, Ricardo Otazo1, Barbara Srichai1, Ruth Lim1, Bhat Himanshu3, Kelly Anne Mcgorty1, Joseph Reaume1, Daniel Sodickson1

1Center for Biomedical Imaging, Radiology,New York University, New York, NY, United States; 2PolyTechnic Institute of New York University and Siemens Medical Solutions USA Inc., New York, NY, United States; 3Siemens Medical Solutions USA Inc., Charlestown, MA, United States

Myocardium viability imaging via late gadolinium hyper-enhancement (LGE) is usually imaged with an inversion recovery sequence. A multi-slice multi-planar 2D approach with an additional TI scout is commonly used in routine clinical practice. Highly accelerated whole volume LGE enables acquisition of all data at the same time point of contrast kinetics is desired. We evaluated the feasibility of whole heart dynamic 4D LGE imaging utilizing different TIs at different phases throughout the entire cardiac cycle within a single BH using 4D stack-of-star radial acquisition and k-t RASPS without the use of a precise TI scout.