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Abstract #3869

Refined Balanced Steady-State Free Precession in Breath-hold Coronary MRA at 3.0T

Sahar Soleimanifard 1 , Matthias Stuber 1,2 , Allison G Hays 1 , Robert G Weiss 1 , and Michael Schar 1,3

1 Johns Hopkins University, Baltimore, Maryland, United States, 2 University of Lausanne, Lausanne, Switzerland, 3 Philips Healthcare, Cleveland, Ohio, United States

Utilization of balanced steady-state free precession (bSSFP) at 3.0T is significantly hampered by the elevated B0 and local RF field inhomogeneities that generally lead to degraded image quality. In this work, we propose a refined sequence with binomial pre-saturation and Kaiser-Bessel startup pulses to provide a more homogeneous excitation and to suppress the well known dark band artifacts. This sequence, incorporating VERSE pulses and parallel imaging, achieves acquisition of a 3D targeted volume covering the major coronaries within a single breath-hold. Initial studies in healthy subjects and in a patient with established coronary artery disease demonstrate image quality improvements in breath-hold bSSFP at 3.0T.

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