Method and apparatus to correct for a phase error in central section magnetic resonance imaging data
US4831329A · kind A · utility
6Cited by
3References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 11, 1988 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jan 11, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and related apparatus are provided for correcting for a phase error in MRI observed values which represent a scan line which passes through the origin of Fourier space. The phase error is estimated by calculating the phase of the sum of the observed values. The observed values are then modified as a function of the estimated phase error. To minimize the effect of T.sub.2 decay, the phase error may be estimated by calculating the phase of the sum of the product of each pair of observed values on the scan line which have been relocated symmetrically, one on each side of the Fourier space origin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.