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Abstract #0664

T1 mapping of the entire abdomen using a time efficient free breathing neural network radial Look Locker approach

Eze Ahanonu1, Kevin Johnson2, Ute Goerke3, Brian Toner4, Vibhas Deshpande5, Ali Bilgin1,2,6, and Maria Altbach2,6
1Department of Electrical and Computer Engineering, The University of Arizona, Tucson, AZ, United States, 2Department of Medical Imaging, The University of Arizona, Tucson, AZ, United States, 3Siemens Healthineers, Tucson, AZ, United States, 4Applied Math Program, The University of Arizona, Tucson, AZ, United States, 5Siemens Healthineers, Austin, TX, United States, 6Department of Biomedical Engineering, The University of Arizona, Tucson, AZ, United States

Synopsis

Keywords: Quantitative Imaging, BodyThe interest in developing quantitative metrics in abdominal imaging has grown in recent years. In particular, abdominal T1 mapping plays a role in the characterization of abdominal pathologies. However, current T1 mapping of the abdomen is limited by poor anatomical coverage, long acquisitions related to sufficient sampling of the T1 recovery curve and recovery times, and reduced T1 accuracy secondary to respiratory motion. Here we present a novel approach for free-breathing T1 mapping of the abdomen, which leverages the undersampling robustness of radial MRI and combines fast data acquisition with deep learning for accurate and efficient abdominal T1 mapping.

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