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.
Keywords