Method for three-dimensionally correcting distortions and magnetic resonance apparatus for implementing the method
US6501273B2 · kind B2 · utility
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8References
6Claims
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Key dates
| Filing date | Jun 11, 2001 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jun 11, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a method and apparatus for three-dimensionally correcting distortions of an image dataset, a magnetic resonance device containing a basic field magnetic system for generating a basic magnetic field and a gradient system for generating gradient fields generates an image dataset and coefficients of a spherical function-series expansion of the basic magnetic field and/or of the gradient fields are used for the correction. Coefficients are thereby used, which have been determined, in the framework of a design and/or production procedure, forth basic field magnetic system and/or gradient system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.