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Abstract #0293

Exploring the Limits of Resolution in Contrast Enhanced MRA with Ultrashort Echo Time Imaging

Kevin Michael Johnson 1 , Yijing Wu 1 , and Patrick A Turski 2

1 Medical Physics, University of Wisconsin-Madison, Madison, WI, United States, 2 Radiology, University of Wisconsin-Madison, Madison, WI, United States

Imaging at high spatial resolution is requisite for imaging the intracranial vasculature; however, achieving high spatial resolution is challenging due to competing factors including SNR, scan time, and artifacts. In particular, as the resolution increases the need for flow compensation increases which can lead to lower SNR and increases sensitivity to higher order motion effects. In this work, we investigate high spatial resolution angiography utilizing accelerated Contrast Enhanced (CE) ultra-short echo (UTE) imaging, and demonstrate high resolution imaging of the vascular system with 0.57mm isotropic resolution.

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