Meeting Banner
Abstract #1616

Multi-Shot SENSE DWI at 7T

Ha-Kyu Jeong1,2, Adam W. Anderson1,2, John C. Gore1,2

1Vanderbilt University Institute of Imaging Science, Nashville, TN, United States; 2Department of Radiology and Radiological Sciences, Vanderbilt University, Nashville, TN, United States

We developed a simple reconstruction method for multi-shot SENSE diffusion weighted data using an interleaved EPI sequence. The reconstruction was done independently for each column of the image by combining image unwrapping and phase corrections. To estimate shot-to-shot phase variations due to subject motion during diffusion encoding, a 2-D navigator-echo acquisition was used following the image-echo acquisition. Both of the echo acquisitions were SENSE accelerated reducing scan duration, susceptibility and T2* effects. Our reconstruction method and pulse sequence produced diffusion weighted images free of ghost artifacts at 7 Tesla.