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Abstract #0313

Ungated, Motion Robust, Simultaneous Cardiac and Liver T2* Quantification via Rosette k-Space Sampling

Adam Michael Bush1, Christopher Michael Sandino2, Shreya Ramachandran3, Nicholas Dwork4, Frank Ong1, Marcus Alley1, and Shreyas Vasanawala1
1Radiology, Stanford University, Palo Alto, CA, United States, 2Electrical Engineering, Stanford University, Palo Alto, CA, United States, 3Electrical Engineering, University of California Berkeley, Berkeley, CA, United States, 4Radiology, University of California San Francisco, San Francisco, CA, United States

In this work we introduce a novel method for T2* determination using rosette k-space sampling and locally low-rank reconstruction. This approach produced comparable T2* quantitation with higher spatial resolution, fewer motion artifacts and lessened variability without the use of gating. This approach offers a child-friendly, rapid, free-breathing, comprehensive assessment of liver and cardiac iron.

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