Magnetic resonance imaging apparatus

Details Magnetic resonance imaging apparatus Magnetic resonance imaging apparatus

1993-02-25

1994-10-04

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324306, G01V 300

Patent

active

053529804

ABSTRACT:
The MR imaging apparatus for imaging a moving spin, comprises a design unit for designing four sets of pulse sequences with four moment vectors, especially four first moment vectors, which can impart a phase shift to the moving spins, an acquiring unit for acquiring echo data by implementing the designed pulse sequences, a calculating unit for calculating a flow-related value of the moving spin, especially, a flow velocity using the echo data and a generating unit for generating image data of the moving spin using the calculated flow velocity. The first moment vectors correspond to four vertices of a tetrahedron respectively located in a 3-D moment space, a center of which coincides with an origin of the 3-D moment space.

REFERENCES:
patent: 5038783 (1991-08-01), Dumoulin
patent: 5221898 (1993-06-01), Takiguchi et al.
"Optimal-Quantitative Velocity Imaging with Tetrahedral Encoding Gradients", Conturo, T. J., et al., Radiology, 181(P), 189, (1991). (Month of Pub. unknown).

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