NMR imaging system using excited reference coils

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

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G01R 3320

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active

046238433

ABSTRACT:
NMR imaging of an object is achieved in the presence of temporal variations in the magnetic field. A reference volume is separately excited. The resultant signal is used to find the correct excitation frequency for the desired plane. Prior to receiving the signal from the object reference volumes on either side are excited to provide signals which are used to form the demodulation and sampling signals.

REFERENCES:
patent: 4417209 (1983-11-01), Hounsfield
patent: 4418316 (1983-11-01), Young
patent: 4425547 (1984-01-01), Adams
patent: 4442404 (1984-04-01), Bergmann

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