Grase-type three-dimensional MR pulse sequences

Details Grase-type three-dimensional MR pulse sequences Grase-type three-dimensional MR pulse sequences

1995-07-31

1997-03-18

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

056126190

ABSTRACT:
A three-dimensional GRASE-type MR pulse sequence varies phase-encoding along the Z-axis identically in all signals between each two adjacent RF refocussing pulses in the MR pulse sequence. The phase error modulation caused by magnetic field inhomogeniety and the T2 amplitude modulation are separated onto two different spatial axes. This permits complete elimination of periodicity in both modulations and thereby improves image quality.

REFERENCES:
patent: 5270654 (1993-12-01), Feinberg et al.
patent: 5402067 (1995-03-01), Pauly et al.
patent: 5459400 (1995-10-01), Moonen

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