Fast cardiac gated NMR acquisition with improved T.sub.1 contras

Details Fast cardiac gated NMR acquisition with improved T.sub.1 contras Fast cardiac gated NMR acquisition with improved T.sub.1 contras

1995-08-03

1996-08-13

Tokar, Michael

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

1286532, G01V 300

Patent

active

055459927

ABSTRACT:
A fast gradient echo, cardiac gated NMR scan is performed by acquiring groups of views during each cardiac cycle. Each group of views is preceded by an accelerator RF pulse and disdaq pulse sequences to improve T.sub.1 contrast and drive spin magnetization rapidly to dynamic equilibrium.

REFERENCES:
patent: 5256967 (1993-10-01), Foo et al.
patent: 5347216 (1994-09-01), Foo
patent: 5429134 (1995-07-01), Foo
Ultrafast Interleaved Gradient-Echo-Planar Imaging on a Standard Scanner, MRM 30:609-616 (1993), G. C. KcKinnon.
Improved Ejection Fraction and Flow Velocity Estimates with Use of View Sharing and Uniform Repetition Time Excitation with Fast Cardiac Techniques, Radiology, May 1995, vol. 195 No. 2, 471-478, Foo, et al.

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