Method for separating magnetic resonance imaging signals using spectral distinction of species
US8373415B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 15, 2010 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56563
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for producing an image of a subject with a magnetic resonance imaging (MRI) system in which a signal contribution of a chemical species is depicted and a signal contribution of another chemical species is substantially separated is provided. For example, the provided method is applicable for water-fat separation. Spectral differences between at least two different chemical species are exploited to produce a weighting map that depicts the likelihood that one chemical species being depicted as another. A weighting map that characterizes the smoothness of a field map variation is also produced. These weighting maps are utilized to produce a correct field map estimate, such that a robust separation of the signal contributions of the at least two chemical species can be performed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.