Magnetic resonance image zooming

Details Magnetic resonance image zooming Magnetic resonance image zooming

1984-09-20

1987-02-17

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

046442804

ABSTRACT:
A slice selection arrangement for MRI systems uses a psuedo-spin echo procedure by applying a 90 degree RF pulse in the presence of gradient pulse, applied in the direction of the encoding pulses; applying the 180 degree RF pulse in the presence of a gradient in another orthogonal direction and reading out the echo in the presence of the third orthogonal gradient pulse. Aliasing artifacts are avoided even though the section imaged is smaller than the object size, allowing zooming and/or a reduced number of encoding cycles for single slice imaging.

REFERENCES:
patent: 4290019 (1981-09-01), Hutchison
patent: 4480228 (1984-10-01), Bottomley

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