Abstract #0785

Free-Breathing Dynamic MRI with Sliding Slice Distorted Simultaneous Multi-Slice

Kevin M Johnson¹, James H Holmes², and Scott B Reeder^1,3,4

¹Medical Physics, University of Wisconsin - Madison, Madison, WI, United States, ²Global MR Applications and Workflow, GE Healthcare, Madison, WI, United States, ³Radiology, University of Wisconsin - Madison, Madison, WI, United States, ⁴Biomedical Engineering, University of Wisconsin - Madison, Madison, WI, United States

Sliding slice MRI is a technique which uses a magnetization prepared sliding 2D slice to cast respiratory motion artifacts as geometric distortions rather than diagnostically obscuring ghosting routinely associated with 3D phase-encoding. In this work, we present the combination of simultaneous-multi-slice with pseudo-random Cartesian based sliding slice sampling. This combination allows increased frame rates, FOV tailoring, and reduces sensitivity to off-resonance compared to past non-Cartesian radial and spiral based approaches. Preliminary results are shown in moving phantoms and in-vivo free breathing DCE, demonstrating very good image quality.

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