Abstract #1493

Ultrashort TE MRI for Free-Breathing Imaging of the Rodent Lung

Eriko Yoshimaru¹, Theodore Trouard¹,²

¹Biomedical Engineering, University of Arizona, Tucson, AZ, United States; ²Bio5 Institute, University of Arizona, Tucson, AZ, United States

3D Ultrashort TE (UTE) MRI was carried out in vivo on mice without respiratory restrictions. The importance of experimentally measuring k-space trajectories for image reconstruction was studied. Additionally, retrospectively respiratory gating the 3D data set allowed for images at two distinct respiratory phases to be reconstructed, providing valuable physiological information regarding pulmonary physiology.