Virtual frequency encoding of acquired NMR image data

Details Virtual frequency encoding of acquired NMR image data Virtual frequency encoding of acquired NMR image data

1995-10-10

1996-07-16

Tokar, Michael

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

055370390

ABSTRACT:
Slabs are selected using a combination of a slab select gradient and selective RF excitation pulses to acquire 3D NMR data. Thinner 2D slices are selected within each slab by employing virtual frequency encoding of the acquired NMR signals. This encoding is achieved by stepping the value of the gradient in the slab select direction and concurrently changing the time interval between RF excitation and acquisition of the resulting NMR echo signal. A gradient recalled echo pulse sequence and a fast spin echo pulse sequence are described.

REFERENCES:
patent: 4857846 (1989-08-01), Carlson
patent: 4970457 (1990-11-01), Kaufman et al.
patent: 5157330 (1992-10-01), Kaufman et al.
patent: 5168228 (1992-12-01), Mansfield et al.

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