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Abstract #2408

Non-Subtraction Dynamic Contrast Enhanced MR Angiography at 3T using IVD Sampling, Parallel Imaging and 2-pt Dixon

Kang Wang 1 , Mahdi Salmani Rahimi 2 , Courtney K Morrison 3 , Christopher J Francois 4 , James H Holmes 1 , and Frank R Korosec 3,4

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

Conventional subtraction-based dynamic contrast-enhanced (DCE) MR Angiography (MRA) is susceptible to patient motion between the pre-contrast mask and the contrast phases. Recently, a 2-point Dixon based non-subtraction method for CE MRA has been proposed and improved motion robustness has been shown. However, it was demonstrated with single phase MRA; no temporal information was obtained. In this work, we combined 2-pt Dixon with fast dynamic imaging techniques and applied it for DCE MRA at 3T, eliminating the need for bolus timing or monitoring and gathering temporal information.

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