MRI imaging system using a periodic bias field

Details MRI imaging system using a periodic bias field MRI imaging system using a periodic bias field

1992-05-18

1993-12-28

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

052743314

ABSTRACT:
Signals from precessing magnetic moments are received in the presence of a cyclically varying bias field to avoid the phase error buildup due to inhomogeniety. The bias field has substantially a zero average value and can either use a pulse or a symmetrical waveform. The demodulating signal is based on the frequency of the cyclical variations.

REFERENCES:
patent: 4868502 (1989-09-01), Hanakawa et al.
patent: 5057776 (1991-11-01), Macovski

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