Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1993-11-29
1995-05-02
O'Shea, Sandra L.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324300, G01R 3320
Patent
active
054123216
ABSTRACT:
A magnetic resonance imaging method for emitting a single excitation RF pulse and then a plurality of refocusing RF pulses to an examinee to generate echo signals successively. This method includes the steps of emitting the single excitation RF pulse and then the plurality of refocusing RF pulses to the examinee to generate echo signals successively; applying slice selecting gradient field pulses for selecting a slice plane simultaneously with the excitation RF pulse and the refocusing RF pulses; applying phase encoding gradient field pulses for phase-encoding a key echo signal and subsequent echo signals among the echo signals resulting from the above steps, without applying the phase encoding gradient field pulses for phase-encoding echo signals generated before the key echo signal, the key echo signal being a signal having collected data of lines in and adjacent a center region of a raw data space of the slice plane; and applying reading gradient field pulses in respect of the echo signals for which the phase encoding gradient field pulses have been applied.
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Iijima Naoto
Kohno Satoru
Mah Raymond Y.
O'Shea Sandra L.
Shimadzu Corporation
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