Diagnostic apparatus employing nuclear magnetic resonance

Details Diagnostic apparatus employing nuclear magnetic resonance Diagnostic apparatus employing nuclear magnetic resonance

1985-03-29

1987-02-17

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

046442790

ABSTRACT:
After spins in a subject being examined have been selectively excited, the application of gradient magnetic fields is interrupted to produce an FID signal. The intensity of the primary magnetic field is determined based on the central frequency of the Fourier spectrum of the FID signal, i.e., the Larmor frequency. The primary magnetic field is controlled or the observed data is corrected, according to the measured value of the primary magnetic field intensity.

REFERENCES:
patent: 4577152 (1986-03-01), Macovski
patent: 4579121 (1986-04-01), Macovski

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