NMR gated imaging apparatus

Details NMR gated imaging apparatus NMR gated imaging apparatus

1990-02-09

1991-07-16

Williams, Hezron E.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01V 300

Patent

active

050327933

ABSTRACT:
Disclosed is an NMR gated imaging apparatus in which an ultrasonic pulse signal is repeatedly transmitted toward the heart of a human body from an ultrasonic transducer to detect the position of the heart on the basis of the time of detection of a peak of an echo signal, and excitation and measurement of an NMR signal are executed only when a peak detector generates a detection output signal having a level included in a predetermined range. Thus, the NMR signal is repeatedly measured according to a programmable phase encoding amount at a limited phase of gated imaging.

REFERENCES:
patent: 4694836 (1987-09-01), Buikman et al.
patent: 4739766 (1988-04-01), Riederer
patent: 4802988 (1989-04-01), Crooks et al.

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