Abstract #3888
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
1
Physics, University of Utah, Salt Lake City,
Utah, United States,
2
Radiology,
New York University, New York, United States,
3
UCAIR,
Radiology, University of Utah, Salt Lake City, Utah,
United States
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.
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