Nuclear magnetic resonance imaging apparatus

Details Nuclear magnetic resonance imaging apparatus Nuclear magnetic resonance imaging apparatus

1985-01-25

1987-02-17

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

046442782

ABSTRACT:
An NMR imaging apparatus is disclosed, which comprises imaging means for measuring a cross section of an object to be inspected with a high speed and for reconstructing an image of said cross section, means for specifying a region of interest in the image of the object to be inspected thus reconstructed by said imaging means, and gradient magnetic field control means for controlling a gradient of a magnetic field so that the gradient of the magnetic field at the specified region of interest is substantially greater than that at the other regions, whereby an enlarged image with high image quality at the region of interest is obtained by reconstructing an image of said region of interest after having raised the gradient of the magnetic field at least at said region of interest by means of said gradient magnetic field control means.

REFERENCES:
patent: 4021726 (1977-05-01), Garroway

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