Adaptive method for reducing motion and flow artifacts in NMR im

Details Adaptive method for reducing motion and flow artifacts in NMR im Adaptive method for reducing motion and flow artifacts in NMR im

1989-06-13

1990-06-26

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324306, G01R 3320

Patent

active

049375261

ABSTRACT:
An NMR data set which is acquired with applied phase encoding and read-out gradients is corrected to reduce motion artifacts and increase image sharpness. The acquired NMR data set is examined to detect bulk displacements of the object being imaged and phase displacements caused by motion. This information is employed to produce correction operators which are applied to the NMR image data set. One or more navigator signals may also be acquired during the scan to produce an NMR data set from which the corrective operators can more readily be derived.

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