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Abstract #2599

High Temporal Resolution 4D Contrast Enhanced Liver MR Imaging Using Spiral Trajectory and Sliding Window Reconstruction

Bo Xu1,2, Pascal Spincemaille2, Beatriu Reig2, Fei Sun3, Martin R. Prince2, Yi Wang, 2,3

1Department of Biomedical Engineering, Cornell University , Ithaca, NY, United States; 2Department of Radiology, Weill Cornell Medical College, New York, NY, United States; 3Department of Biomedical Engineering, Cornell University, Ithaca, NY, United States

In this work, high temporal resolution 4D dynamic contrast enhanced liver MR imaging is achieved using a stack of spirals trajectory and sliding window reconstruction in healthy volunteers. This allows the detection and characterization of liver lesions in the arterial and later phases without the need for accurate contrast bolus timing. Additionally, a retrospective selection of the optimal arterial phase is possible and the determination of hepatic artery anatomical variants can be done with increased diagnostic confidence.