Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1987-03-30
1988-10-04
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324307, G01R 3320
Patent
active
047758350
ABSTRACT:
A magnetic resonance imaging apparatus includes a sequence controller. The sequence controller includes an event memory for storing a plurality of data subsets useful for applying magnetic fields and radio frequency (RF) pulses to a body under medical examination, each of the data subsets containing event data, time data for performing the event data and control data for controlling execution of the event data. It further includes a reference time generator, a comparator for comparing the reference time with the time data sequentially read from the event memory within one reference time period, and a control circuit for sequentially controlling an application of the magnetic fields and RF pulses to the body, and data acquisition based upon the event data and control data whenever the time data is coincident with the reference time data judged by the comparator.
REFERENCES:
patent: 4191919 (1980-03-01), Haney et al.
patent: 4318043 (1982-03-01), Crooks
patent: 4471306 (1984-09-01), Edelstein
patent: 4525673 (1985-06-01), Berkowitz
patent: 4620153 (1986-10-01), Hino
patent: 4689564 (1987-08-01), Leue et al.
Kabushiki Kaisha Toshiba
Tokar Michael J.
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