Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1987-09-28
1988-08-30
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324309, G01R 3320
Patent
active
047679921
ABSTRACT:
A magnetic resonance imaging system is made up of a static field generator, a gradient field generator, an excitation pulse generator, a receiver, a controller for controlling the static field generator, gradient field generator, excitation pulse generator, and receiver, and an image processor. The controller includes a multi-slice control section and an adjustment/control section. The multi-slice controller sequentially controls use excitation of a plurality of slices by a plurality of excitation pulses of different carrier frequencies in a common static field and a gradient field. Through these excitations, the magnetic resonance data for the plurality of slices is obtained with one excitation repetition period, and the multi-slice imaging can be performed by a predetermined number of repetitive excitations. The adjustment/control section operates the multi-slice control section for the adjustment of the respective adjustment-required parameters of the MRI system, and causes it to execute the adjustments of adjustment-required parameters of the MRI system, which are different with those slices subjected to the imaging, in connection with the multi-slice imaging.
REFERENCES:
patent: 4318043 (1982-03-01), Crooks
patent: 4599565 (1986-07-01), Hoenninger
patent: 4685468 (1987-08-01), Macouski
patent: 4707658 (1987-11-01), Frahm
patent: 4710717 (1987-12-01), Pelc
Kabushiki Kaisha Toshiba
Tokar Michael J.
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