Inversion recovery MRI

Details Inversion recovery MRI Inversion recovery MRI

1995-08-17

1996-12-31

Lateef, Marvin M.

Surgery

Truss

Pad

1286531, 1286532, 324307, 324309, 324312, A61B 5055

Patent

active

055884318

ABSTRACT:
Multiple inversion recovery flow imaging employs at least four spin inversion pulses following saturation of static nuclei spins to null nuclei in static material having different spin-lattice relaxation times (T.sub.1) with the inversion pulses being spaced in time to substantially reduce the longitudinal magnetization of the T.sub.1 species present. The saturation of static nuclei spins includes applying a sequence of saturation pulses with adjacent pulses being separated by a diphasing gradient to avoid refocusing coherence. The detection of signals includes applying at least one RF read-out pulse near the nulling point.

REFERENCES:
Coronary Angiography with Magnetization-Prepared T.sub.2 Contrast Brittain et al., May 1995 vol. 33; No. 5 Magnetic Resonance in Medicine.

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