Abstract #1519
Respiratory-Resolved Fat-Suppressed Cardiac Cine MRI
R Reeve Ingle 1 , Michael V McConnell 1,2 , Juan M Santos 3 , William R Overall 3 , Bob S Hu 1,4 , and Dwight G Nishimura 1
1
Electrical Engineering, Stanford University,
Stanford, California, United States,
2
Cardiovascular
Medicine, Stanford University, Stanford, California,
United States,
3
HeartVista, Inc., Menlo Park,
California, United States,
4
Palo
Alto Medical Foundation, Palo Alto, California, United
States
A free-breathing, fat-suppressed cardiac cine pulse
sequence is proposed, allowing multiple respiratory and
cardiac phases to be simultaneously resolved. Fat
suppression is achieved using an alternating repetition
time balanced steady-state free precession sequence. By
redesigning the slice-select rephasing gradients, a 1D
navigator readout is acquired during the unused short TR
interval and used to track respiratory motion. This
technique allows data from a single free-breathing scan
can to be displayed in a standard cardiac-cine format
for a fixed respiratory phase, or in a
respiratory-cine format for a fixed cardiac phase.
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