Magnetic resonance imaging
US8644905B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5608
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method removes a part representing non-brain tissue of the MR brain image. For each generated magnetic field gradient, acquiring a current signal respectively at a first time of echo TE1 after an excitation radio frequency pulse and at a second time of echo TE2 after the radio frequency pulse. The MR brain image of an internal structure of the target. The first time of echo TE1 and the second time of echo TE2 are adjusted for correlating time of echo difference ΔTE=TE2−TE1 with a fat and water mutual resonance frequency difference δ, and in that fat and water information encoded in the current signal resulting from the correlation of the second and first time of echo difference ΔTE with the fat and water mutual resonance frequency difference is used as an additional input source into a multispectral analysis method for removing the part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.