Nuclear magnetic resonance imaging methods and apparatus

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

1986-08-12

1987-10-27

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3320

Patent

active

047032693

ABSTRACT:
A nuclear magnetic resonance imaging method and apparatus using the Hahn spin echo technique wherein dephasing of spins due to selection field gradients (G1x, G2x, G3x) applied during the radio frequency excitation pulses (B1 (90.degree.), B2 (90.degree.), B3 (90.degree.) of the Hahn technique is corrected solely by magnetic field gradients (-G'x, -G2'x) applied before the last radio frequency excitation pulse.

REFERENCES:
patent: 4536712 (1985-08-01), Iwaoka et al.
patent: 4563647 (1986-01-01), Young
patent: 4587488 (1986-05-01), Young
E. L. Hahn, "Spin Echoes", Phys. Rev., vol. 80, No. 1, Nov. 1950, pp. 580-594.

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