Nuclear magnetic resonance diagnostic apparatus

Details Nuclear magnetic resonance diagnostic apparatus Nuclear magnetic resonance diagnostic apparatus

1982-08-31

1985-05-07

Howell, Kyle L.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

128653, G01N 2700, A61B 505

Patent

active

045160740

ABSTRACT:
Nuclear magnetic resonance diagnostic apparatus including a coil for generating a gradient field in a plane perpendicular to a static magnetic field, means for controlling the operation of the coil to rotationally shift in angular steps the gradient direction of the gradient field at an angle pitch of some multiple of the unit index angle through a plurality of rotations to assume all the shift positions of the gradient direction, a rough image reconstructor for reconstructing a rough tomographic image on the basis of nuclear magnetic resonance signals acquired during a rotation of the second gradient magnetic field, a rough image display for depicting the rough tomographic image, a final image reconstructor for reconstructing a final tomographic image on the basis of all nuclear magnetic resonance signals corresponding to all of the expected rotation shift positions acquired during a plurality of rotations and a final image display for depicting the final tomographic image.

REFERENCES:
patent: 4254778 (1981-03-01), Clow et al.
patent: 4322684 (1982-03-01), Hounsfield
Lindberg, D. A. B. et al., "Digital Image Processing in Medicine", Proceedings Hamburg, Germany, Oct. 1981, pp. 21-22.

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