Highly Accelerated Cine DENSE MRI with k-t SPARSE SENSE
Elwin Bassett 1 , Ricardo Otazo 2 , Li Feng 2 , Ganesh Adluru 3 , Edward DiBella 3 , and Daniel Kim 3
Physics, University of Utah, Salt Lake City,
Utah, United States,
New York University, New York, United States,
Radiology, University of Utah, Salt Lake City, Utah,
Displacement encoding with stimulated echoes (DENSE) MRI
is a promising method to quantify myocardial strain.
While 2-fold accelerated cine DENSE MRI using TSENSE has
been validated, its breath-hold duration (12
heart-beats) may still be too long for critically ill
patients. We have retrospectively undersampled full
DENSE data sets in two volunteers at acceleration
factors of 4 and 8 and reconstructed them using k-t
SPARSE SENSE parameters. Compared with circumferential
shortening strain from the fully sampled data sets,
strain from 4-fold and 8-fold undersampled data sets
agreed well, suggesting feasibility of
highly-accelerated cine DENSE MRI with k-t SPARSE-SENSE.
This abstract and the presentation materials are available to members only;
a login is required.