Abstract #0821
First-pass Coronary MR Angiography Using a Spiral-Ring Trajectory
Kie Tae Kwon 1 , R Reeve Ingle 1 , Holden H Wu 2 , William R Overall 3 , Juan M Santos 3 , Bob S Hu 4 , and Dwight G Nishimura 1
1
Electrical Engineering, Stanford University,
Stanford, CA, United States,
2
Radiology,
UCLA, California, United States,
3
HeartVista,
Inc, California, United States,
4
Palo
Alto Medical Foundation, Palo Alto, CA, United States
2D multislice interleaved spiral imaging for coronary
magnetic resonance angiography (MRA) has been shown to
be capable of imaging multiple slices with sub-mm
in-plane resolution and high temporal resolution within
a breath-hold. However, an important issue with this
sequence is blood-lesion contrast. In this work, we
developed a spiral-ring version of the sequence, which
is aimed for first-pass coronary MRA for potentially
better blood-muscle and blood-lesion contrast. The
preliminary in vivo datasets demonstrated the
feasibility of the spiral-ring trajectory for first-pass
coronary MRA.
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