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Abstract #3237

Free Breathing Phase-Resolved Lung Imaging Using a 3D UTE Cones Sequence with Randomized Encoding

Ya-Jun Ma1, Michael Carl2, Hyungseok Jang1, Saeed Jerban1, Eric Y Chang1,3, Seth Kligerman1, and Jiang Du1
1UC San Diego, San Diego, CA, United States, 2GE Healthcare, San Diego, CA, United States, 3VA Health system, San Diego, CA, United States

MR imaging of lung is challenging due to its short T2* and low proton density. In this study, we proposed a free breathing phase-resolved lung imaging technique using a 3D UTE sequence with an efficient Cones trajectory. Five different respiration phases were resolved using a self-navigator technique, and the corresponding lung images were reconstructed with a combined parallel imaging and compressed sensing algorithm. Small pulmonary vessels were well-displayed in these images.

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