Three-dimensional magnetic resonance image distortion correction method and system
US5005578A · kind A · utility
53Cited by
6References
4Claims
0Family size
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Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2218/22
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system in Nuclear Magnetic Resonance (NMR) medical imaging systems corrects for three-dimensional distortions arising from the apparatus and patient specific distortions using a phantom and a helmet, both of which have fiducial markers in a three-dimensional matrix. The positions of the phantom and helmet fiducial markers are automatically detected and compared in a computer system which uses image transform algorithms to correct for the various distortions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.