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Abstract #3903

ECG-Gated Fast Spin Echo MRA with Interleaved Acquisition of Systolic and Diastolic Data for Improved Robustness to Motion

Iliyana Atanasova1, 2, Pippa Storey2, Daniel Kim3, Ruth Lim2, Vivian Lee3

1Columbia University, New York, United States; 2New York University, New York, NY, United States; 3The University of Utah, Salt Lake City, UT

In ECG-gated spin-echo based non-contrast MRA (FSE-MRA) bright blood angiograms are obtained by subtracting sequentially acquired systolic and diastolic images. This technique can provide excellent depiction of the arteries, but suffers from poor tolerance to patient motion. We hypothesize that interleaving the acquisition of systolic and diastolic partitions may improve robustness to motion. Our results demonstrate that it is feasible to implement FSE-MRA with systolic-diastolic interleaving. Results in one volunteer, instructed to perform controlled movements, suggest that the interleaved acquisition may be more robust to motion compared to a sequential scan.