NMR flow imaging using bi-phasic excitation field gradients

Details NMR flow imaging using bi-phasic excitation field gradients NMR flow imaging using bi-phasic excitation field gradients

1985-07-29

1987-03-31

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Determine fluid flow rate

324309, G01R 3320

Patent

active

046545913

ABSTRACT:
An NMR zeugmatographic scanner is modified to provide flow images. A motion sensitizing, bi-phasic excitation field gradient is applied during each measurement cycle to produce transverse magnetization in paramagnetic nuclei which are moving in the direction of the gradient. The resulting free induction signal is processed using an inverse Fourier transformation to produce images of flowing paramagnetic nuclei.

REFERENCES:
patent: 4516075 (1985-05-01), Moran
patent: 4523596 (1985-06-01), Macovski
patent: 4528985 (1985-07-01), Macovski
patent: 4565968 (1986-01-01), Macovski
patent: 4595879 (1986-01-01), Lent et al.
patent: 4602641 (1986-07-01), Feinberg

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