Magnetic resonance method and device for acquiring short echo ti

Details Magnetic resonance method and device for acquiring short echo ti Magnetic resonance method and device for acquiring short echo ti

1990-05-16

1992-11-03

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

051608898

ABSTRACT:
A magnetic resonance imaging method for high quality short echo time imaging uses FID-acquired-echoes. Gradient recalled echoes are excited in two short echo time acquisition sequences having opposite polarity reading gradients. Half-echoes for corresponding phase encoding steps are concatenated to reconstructed echoes. An image is reconstructed from the reconstructed echoes using a Fourier transform reconstruction method. With the method artefact free high quality images with echo times below 4 msec can be obtained, even under unfavorable conditions, such as fast blood flow.

REFERENCES:
patent: 4791369 (1988-12-01), Yamamoto et al.
patent: 4814710 (1989-03-01), McKinnon
patent: 4818914 (1989-04-01), McKinnon
M. A. Foster & J. M. S. Hutchison, "General Principles", Practical NMR Imaging, IRL Press, pp. 14-23 & 28-39.

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