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Abstract #4917

Venc Scouting with a Whole Volume Fourier Velocity Encoding Spectrum Acquisition

Michael Loecher1,2 and Daniel B Ennis1,2,3
1Radiology, Stanford University, Stanford, CA, United States, 2Radiology, Veterans Administration Health Care System, Palo Alto, CA, United States, 3Cardiovascular Institute, Stanford University, Stanford, CA, United States

Synopsis

We explored the application of acquiring Fourier Velocity Encoding (FVE) without spatial encoding to quickly estimate the velocity distribution within a volume of interest. One application is to allow for quick selection of Venc for a subsequent 4D-Flow acquisition, which can limit velocity aliasing and fine-tune the velocity-to-noise ratio for better data quality. Other applications may include new ways of looking at the pulsatility or turbulence of a volume of interest. In this work we implement a FVE sequence in Pulseq and run it in flow phantoms to demonstrate the proof-of-concept data of this technique.

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