Ultra high-speed magnetic resonance imaging method and apparatus

Details Ultra high-speed magnetic resonance imaging method and apparatus Ultra high-speed magnetic resonance imaging method and apparatus

1993-03-03

1996-02-20

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 300

Patent

active

054932246

ABSTRACT:
A magnetic resonance imaging method and apparatus employing a pulse sequence including a periodically switched readout gradient and a phase encoding gradient to derive a series of echo signals. Prior to execution of the pulse sequence for acquiring data for imaging, a pulse sequence in which the phase encoding gradient is cancelled is executed to obtain information of deviation in position of echo peaks. Thereafter, a pulse sequence including the phase encoding gradient is executed and at this time, sampling start timings for echo data sampling in respective phase periods of the readout gradient are controlled according to the information of the echo peak deviation. Further, a phase difference between data of odd number echo signals and data of even number echo signals is compensated by rotating either of the data of the odd number echo signals or the even number echo signals by a suitable rotating angle to minimize artifacts.

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Journal of Physics C: Solid State Physics, 10, L55, 1977. Mansfield. Multiplanar Image Formation (month unknown).

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