Generic eddy-current compensation in magnetic resonance imaging

Details Generic eddy-current compensation in magnetic resonance imaging Generic eddy-current compensation in magnetic resonance imaging

2006-05-16

2006-05-16

Tokar, Michael (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S309000, C324S306000

Reexamination Certificate

active

07046004

ABSTRACT:
A method of steady-state free precession MR imaging is provided that includes the steps of: (a) providing a balanced steady-state free precession imaging sequence that includes a plurality of phase encoding steps, wherein each phase encoding step comprises a phase encoding gradient and a slice selection gradient; and (b) acquiring imaging data by performing the plurality of phase encoding steps in sequence, wherein the imaging data is acquired is compensated for one or more effects due to eddy-currents, flow, or motion related artefacts due to the implementation of one or more artefact compensation strategies that consist of (i) “pairing” of consecutive phase encoding steps and of (ii) “through slice equilibration” of eddy-current and motion or flow related signal oscillations.

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Spincemaille P, Nguyen TD, Wang Y, “View Ordering for Magnetication Prepared Steady State Free Precession Acquiaition: Application in Contrast-Enhanced MR Angiography”, Magn Reson Med 2005; 52:461-466.

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