RF power calibration for an MRI system using multiple axis proje

Details RF power calibration for an MRI system using multiple axis proje RF power calibration for an MRI system using multiple axis proje

1998-10-30

2000-08-29

Oda, Christine K.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324314, 324307, 600410, G01V 300

Patent

active

061114111

ABSTRACT:
An MRI system performs a calibration prescan in which NMR projections are produced using either a spiral acquisition pulse sequence (FIG. 3) or a series of pulse sequences at a corresponding series of projection angles. The signal energies of the projections are summed to produce NMR calibration data. The signal energy in a prescribed region of interest may be calculated to provide the optimal RF transmit power when using local coils.

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patent: 5107215 (1992-04-01), Schaefer et al.
patent: 6025718 (2000-02-01), Hushek

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