Method for mapping the RF transmit and receive field in an NMR s

Details Method for mapping the RF transmit and receive field in an NMR s Method for mapping the RF transmit and receive field in an NMR s

1989-08-21

1991-03-19

Williams, Hezron E.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3320

Patent

active

050014285

ABSTRACT:
An NMR system for producing images carries out a procedure in which field maps are produced that indicate inhomogeneities in the transmitted RF excitation field and inhomogeneities in the RF receive field. Intensity NMR data is acquired using a set of different RF excitation field strengths and separate transmit and receive arrays are produced by fitting a characteristic curve to the data. A variety of images which display RF inhomogeneities may be produced from these two arrays.

REFERENCES:
patent: 4616183 (1986-10-01), Glover et al.
patent: 4713614 (1987-12-01), Hoshino et al.
patent: 4745364 (1988-05-01), Hatanaka

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