Abstract #0554

Self-Gated Cardiac Phase-Contrast Balanced SSFP at 0.55T

Charles McGrath¹, Oliver Bieri^2,3, Sebastian Kozerke¹, and Grzegorz Bauman^2,3

¹University and ETH Zurich, Zurich, Switzerland, ²Division of Radiological Physics, Department of Radiology, University Hospital Basel, Basel, Switzerland, ³Department of Biomedical Engineering, University of Basel, Basel, Switzerland

Synopsis

Keywords: Flow, Low-Field MRI

Free-running radial phase-contrast balanced steady-state free precession (PC-bSSFP) imaging including slice-select gradient inversion and respiratory and cardiac self-gating enables robust through-plane flow quantification in the aorta with excellent image signal-to-noise ratio (SNR) and contrast on a low-cost low-field 0.55T scanner. Relative to phase-contrast spoiled gradient echo (PC-GRE), PC-bSSFP offers SNR improvements by a factor of about two.

Keywords: Flow, Low-Field, Balanced SSFP, Phase-Contrast, Self-gated

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