Abstract #0524

3D MRI with non-linear gradient field, 3D O-space

Sangwon Oh¹, Gigi Galiana¹, Dana Peters¹, and R. Todd Constable¹

¹Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT, United States

MRI with non-linear spatial encoding magnetic (SEM) fields was originally introduced to realize faster gradient switching time without peripheral nerve stimulation (PNS) ¹. Since then various MRI encoding method such as O-Space, 4D-RIO, and FRONSAC have been introduced for more efficient accelerated spatial encoding ^{2, 3, 4}. However, these methods are mostly focused on 2-dimensional MRI and there is uncertainty in its applicability to 3-dimensional MRI. We apply O-Space to 3D MRI and find practical challenges and improvement over 3D radial sequence.

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