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Abstract #3381

Time-Efficient Approximate Inhomogeneity Correction Algorithm for 3D Spiral Contrast Enhanced Imaging of the Liver

Sarah Eskreis-Winkler1, 2, Pascal Spincemaille1, Nanda Deepa Thimmappa1, Martin R. Prince1, Yi Wang1

1Weill Medical College of Cornell University, New York, NY, United States; 2New York Hospital Queens, Flushing, NY, United States

Sliding window 3D spiral contrast enhanced MRI of the liver has been shown to significantly increase the ability to visualize the arterial phase. However, spiral imaging is prone to off-resonance artifacts. In this abstract, a time-efficient approximate algorithm for off-resonance correction was used by acquiring a single off-resonance frequency for each coil and each slice. This did not increase acquisition and reconstruction time and significantly improved image quality (p<0.0001), particularly during the arterial phase.