Fast magnetic resonance imaging and velocimetry for liquids under high flow rates

Journal of Magnetic Resonance
Petrik Galvosas, Paul T Callaghan

Abstract

We here demonstrate the use of NMR velocity imaging techniques to measure flow in a free falling jet of water at speeds up to and on the order of 1m/s. In particular, we show how to adapt the RARE imaging method, based on a CPMG multiple rf pulse train, so that the real and imaginary parts of the signal may be suitably acquired, enabling pulsed gradient spin echo encoding for flow. We term this method "soft-pulse-quadrature-cycled PGSE-RARE" or SPQC-PGSE-RARE. We further demonstrate the use of a one-dimensional (slice selective) imaging method which takes advantage of the cylindrical symmetry of the flow, and considerably shortens the image acquisition time.

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Citations

Mar 2, 2012·Journal of Magnetic Resonance·G ShikoL F Gladden
Aug 2, 2011·Journal of Magnetic Resonance·Natascha SpindlerHarry Vereecken
Feb 15, 2011·Journal of Magnetic Resonance·T M OsánI Espejo
Apr 7, 2010·Journal of Magnetic Resonance·Alexander B TaylerLynn F Gladden
Mar 2, 2010·Journal of Magnetic Resonance·Jennifer R Brown, Paul T Callaghan
Feb 9, 2010·Journal of Magnetic Resonance·D J HollandL F Gladden
Sep 5, 2015·Journal of Magnetic Resonance·Stefan Kuczera, Petrik Galvosas
Jul 18, 2006·Journal of Magnetic Resonance·S AholaB Blümich
May 13, 2015·Journal of Magnetic Resonance·T W BlytheL F Gladden
Jul 30, 2010·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Andrea AmarFederico Casanova

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