Magnetic resonance imaging apparatus

Details Magnetic resonance imaging apparatus Magnetic resonance imaging apparatus

1993-03-31

1994-08-23

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

053410998

ABSTRACT:
Data is produced from asymmetrical echo data, and an MR image is reconstructed from the data thus produced. Namely, inverse Fourier transformation is performed on center echo data, thereby producing phase data. The phase data is inverted in polarity, thereby producing polarity-inverted phase data. Fourier transformation is performed on the polarity-inverted phase data in a readout direction, producing phase-correction data. Inverse Fourier transformation is performed on the asymmetrical echo data in an encode direction. The phase-correction data and the echo data are convoluted in the readout direction, thereby producing echo-data free of phase distortion. Unmeasured echo data is inferred from the convoluted data by utilizing complex conjugate property of the echo data. Inverse Fourier transformation is performed on the convoluted data and the inferred data in the readout direction, thereby producing an image free of phase distortion.

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