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Abstract #1146

Multi-Shot Liver Diffusion MRI Using Variable Auto-Calibrating (vARC) Sampling Across Averages

Ashok Kumar P Reddy1, Harsh Kumar Agarwal1, Rajdeep Das1, Rajagopalan Sundaresan1, Shaik Ahmed1, Sajith Rajamani1, Bhairav Mehta1, Gaohong Wu1, M Ramasubba Reddy2, and Ramesh Venkatesan1
1GE Healthcare, Bangalore, India, 2Indian Institute of Technology Madras, Chennai, India


Obesity is a key biomarker of liver pathology. Diffusion MRI in liver is key protocol in the absence on intravenous contrast agent and also provides additional insights on diffuse liver diseases and lesions However, its usage is limited by the inability to use multi-channel surface coil for obese liver patients in non-wide-bore MRI scanners. A variable k-space sampling scheme and auto-calibrating image reconstruction technique, vARC, is proposed in this abstract to reduce the amount of distortion and improve the image quality of Liver DWI acquired with single channel volume coil.

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