Elsayed H. Ibrahim1, Wolfgang Rehwald2,
Sven Zuehlsdorff2, Richard D. White1
1University of Florida, College of
Medicine, Jacksonville, FL, United States; 2Siemens AG Healthcare
Sector, Cardiovscular MR R&D, Chicago, IL, United States
Strain
encoding (SENC) is a newly-developed MRI technique for measuring myocardial
strain in the through-plane direction. It requires simple post-processing and
gives resolution on the pixel level. With conventional SENC sequence, two
separate scans are required to obtain the strain images. Such approach
increases scan time and could result in image misregistration in
post-processing. Non-Cartesian k-space trajectories are becoming more popular
because they allow for large undersampling with acceptable image quality. In
this work, SENC was combined with radial k-space acquisition using
interleaved SENC tunings and radial undersampling. Scan time was reduced to
one breath-hold with comparable image quality.