NMR imaging method and apparatus

Details NMR imaging method and apparatus NMR imaging method and apparatus

1984-07-27

1986-11-25

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

046251707

ABSTRACT:
An NMR imaging method and apparatus of the type in which a 180-degree RF pulse is applied to generate a spin echo after the selective excitation of a spin by a 90-degree RF pulse. A dummy gradient field, which has the same direction and intensity as those of a gradient field to be applied when the spin echo is observed, is applied between said 90-degree RF pulse and said 180-degree RF pulse so that the instant of starting the application of the gradient field for signal observation is advanced to the extent corresponding to said dummy gradient field.

REFERENCES:
patent: 4297637 (1982-03-01), Crooks et al.
patent: 4520315 (1985-05-01), Loeffler
patent: 4532473 (1985-07-01), Wehrli

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