Nuclear magnetic resonance methods and apparatus

Details Nuclear magnetic resonance methods and apparatus Nuclear magnetic resonance methods and apparatus

1983-11-29

1985-12-10

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, 324311, G01R 3308

Patent

active

045582785

ABSTRACT:
A multi-slice method of NMR imaging wherein a number of discrete slices S.sub.1, S.sub.2, S.sub.3, S.sub.4 are excited simultaneously by using the usual field gradient Gz but an r.f. pulse B.sub.1 which is a mix of a number of pulses of different discrete frequencies, f.sub.1, f.sub.2, f.sub.3, f.sub.4, and recovering data in the presence of an alternating gradient G.sub.2 z in the same direction as used to establish the slices such that discrete spin echo signals of different frequency occur for each slice. Apparatus for use in the method is also disclosed.

REFERENCES:
patent: 4115730 (1978-09-01), Mansfield
patent: 4297637 (1981-10-01), Crooks
patent: 4318043 (1982-03-01), Crooks
patent: 4319190 (1982-03-01), Brown
patent: 4471306 (1984-09-01), Edelstein

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