Magnetic resonance imaging of short T.sub.2 species

Details Magnetic resonance imaging of short T.sub.2 species Magnetic resonance imaging of short T.sub.2 species

1989-07-28

1991-06-18

Tokar, Michael

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

050252160

ABSTRACT:
Magnetic resonance signals for imaging species having short spin-spin relaxation times (T.sub.2) are obtained without the need for a refocusing lobe. A series of RF excitation pulses are applied to the species with magnetic resonance signals being detected after each RF excitation pulse is applied. The magnetic resonance signals are then combined to provide the imaging signals. In one embodiment, each RF excitation pulse is half of a conventional slice-selective pulse with each pulse being slewed to zero.

REFERENCES:
patent: 4748410 (1988-05-01), Macovski
patent: 4767991 (1988-08-01), Rzedzian
patent: 4780675 (1988-10-01), DeMeester
patent: 4833407 (1989-05-01), Holland et al.
patent: 4851779 (1989-07-01), DeMeester
Pauly et al., "AK-Space analysis of Small Tip-Angle Excitation", Journal Mag Res, vol. 81, No. 1, pp. 43-56.

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