Method of high speed imaging with improved spatial resolution us

Details Method of high speed imaging with improved spatial resolution us Method of high speed imaging with improved spatial resolution us

1987-08-17

1988-08-30

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

128653, G01R 3320

Patent

active

047679913

ABSTRACT:
A method of high-speed imaging is employed in which less than 100% of the spatial frequency domain (k-space) is sampled. In one embodiment, the trajectory extends over the k-space origin, and the information acquired from the extension is used to compensate for any phase errors. If the same number of points are collected as in a full k-space acquisition, signal bandwidth is maintained, and spatial frequency response is increased. In a second embodiment, two or more partial k-space acquisitions are performed and then pieced together in a "mosaic" prior to Fourier transformation. In a further embodiment, partial k-space acquisitions in the direction of the readout gradient are combined with interleaved acquisitions in the direction of the phase-encoding gradient to avoid discontinuities.

REFERENCES:
patent: 4678996 (1987-07-01), Haacke et al.
patent: 4727325 (1988-02-01), Matsui et al.

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