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Abstract #1311

Three-Dimensional Myocardial Perfusion MRI Using SW-CG-HYPR

Lan Ge1, Heng Ma2, Aya Kino1, James Carr1, Kuncheng Li, Debiao Li1

1Departments of Radiology and Biomedical Engineering, Northwestern University, Chicago, IL, United States; 2Xuanwu Hospital and Capital Medical University, Beijing, China

Image quality and spatial coverage for myocardial perfusion MRI are limited in current approaches. In this work, we developed a 3D inversion recovery (IR) prepared Turbo-FLASH sequence with radial sampling, combined with SW-CG-HYPR for myocardial perfusion MR imaging. Using this method, the acquisition time per partition in each cardiac cycle was reduced dramatically, and 6 partitions were acquired after each IR pre-pulse. The signal changes of the left ventricle and myocardium were verified by comparison to conventional methods. Mean correlation coefficients between 3D SW-CG-HYPR and reference images are 0.98, 0.96 for blood and myocardial signals, respectively.