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Abstract #3830

Abdominal MR imaging on a prototype low-field 0.55T scanner in comparison to a conventional 1.5T scanner

Hersh Chandarana1, Barun Bagga1, Chenchan Huang1, Bari Dane1, Robert Petrocelli1, Mary Bruno1, Mahesh Keerthivasan2, Himanshu Bhat2, Kai Tobias Block1,3, David Stoffel1, and Daniel K Sodickson1
1Radiology, Center for Advanced Imaging Innovation and Research, NYU Grossman School of Medicine, New York, NY, United States, 2Siemens Medical Solutions USA Inc, Malvern, PA, United States, 3Siemens Healthcare GmbH, Erlangen, Germany

MRI is a powerful imaging modality for abdominal examination. However, high costs and accessibility limit its utilization. Recent advances in acquisition and reconstruction techniques coupled with considerations of value have reignited interest in low-field (≤ 1T) MRI systems. In this study, we developed an abdominal imaging protocol on a prototype 0.55T scanner operating with higher or regular (45 mT/m; 200 T/m/sec) and lower (25 mT/m; 40 T/m/sec) gradients in order to investigate the level of tolerable cost reduction. Our study shows that diagnostic non-contrast abdominal imaging with T2W, DW, and T1W contrast can be performed within 10 minutes or less.

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