Abstract #1139

Soft-gating and Motion Resolved Reconstructions for Free-Breathing Pulmonary Imaging

Wenwen Jiang¹, Frank Ong², Kevin M Johnson³, Scott K Nagle⁴, Thomas Hope⁵, Michael Lustig², and Peder E.Z Larson⁵

¹Bioengineering, UC Berkeley/UCSF, Berkeley, CA, United States, ²Electrical Engineering and Computer Science, UC Berkeley, Berkeley, CA, United States, ³Medical Physics, University of Wisconsin, Madison, Madison, WI, United States, ⁴Radiology, University of Wisconsin, Madison, Madison, WI, United States, ⁵Radiology and Biomedical Imaging, UCSF, San francisco, CA, United States

Structural pulmonary imaging with MRI has many potential applications including lung nodule detection and interstitial lung disease assessments, but is limited by the challenges of short T2*, low proton density, and respiratory and cardiac motion. We propose a combination of an optimized 3D UTE acquisition with advanced reconstruction methods, including motion correction, parallel imaging, and compressed sensing, aiming to make MRI become a clinical option for pulmonary imaging.

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