MRI system with time varying gradient during signal acquisition

Details MRI system with time varying gradient during signal acquisition MRI system with time varying gradient during signal acquisition

1994-01-31

1996-10-01

Kamm, William E.

Surgery

Truss

Pad

324307, 324309, A61B 5055

Patent

active

055603610

ABSTRACT:
An NMR system acquires data during the application of a readout gradient that varies in amplitude. The NMR signal is sampled uniformly in time and is mapped to NMR data which is sampled uniformly in k-space by a digital filter. Sets of stored filter coefficients adapt the digital filter to different readout gradient waveforms and different fields of view and image resolution.

REFERENCES:
patent: Re32748 (1988-09-01), Ordidge et al.
patent: 4527124 (1985-07-01), van Uijen
patent: 5084675 (1992-01-01), Reinfelder et al.
Optimal Sampling and Reconstruction of MRI Signals Resulting from Sinusoidal Gradients, IEEE Transactions on Signal Processing, Avideh Zakhor, et al., vol. 39, No. 9, Sep. 1991.

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