Magnetic resonance imaging apparatus
US5341099A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1993 |
| Grant date | Aug 23, 1994 |
| Priority date | — |
| Expiry date | Mar 31, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/561
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.