Abstract #3938
MYOCARDIAL PERFUSION IMAGING USING TRANSIENT-PHASE SPIRAL-IN/OUT SSFP
Xue Feng 1 , Yang Yang 1 , David Lopez 2 , Michael Salerno 2,3 , and Craig H Meyer 1,3
1
Biomedical Engineering, University of
Virginia, Charlottesville, VA, United States,
2
Medicine,
University of Virginia, Charlottesville, VA, United
States,
3
Radiology, University of Virginia,
Charlottesville, VA, United States
Myocardial first-pass perfusion imaging is a promising
diagnostic tool for the assessment of ischemic heart
disease. Most studies utilize a saturation recovery (SR)
preparation for T1 weighting and a spoiled GRE readout
module. Spiral imaging, due to its high acquisition
speed and robustness against motion artifacts, has been
successfully adopted in this application combined with
the SR GRE sequence using the traditional spiral-out
trajectory. SR combined with a transient SSFP readout is
an alternative sequence that can provide higher SNR. The
spiral-in/out bSSFP sequence is advantageous over the
traditional spiral-out bSSFP sequence since it can take
advantage of the refocusing mechanism at TE = TR/2 to
increase SNR and automatically achieve first gradient
moment nulling due to the symmetry. In this study we
will combine the spiral-in/out trajectory with the SR
SSFP sequence and acquire perfusion data in the
transient phase.
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