System and method for combined chemical species separation and high resolution R2* mapping with magnetic resonance imaging
US9329250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2013 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Jan 4, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/561
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described here is a system and method for estimating apparent transverse relaxation rate, R2*, while simultaneously performing chemical species separation (e.g., water-fat separation) using magnetic resonance imaging (“MRI”). A homodyne reconstruction of k-space datasets acquired using a partial k-space acquisition is used and the chemical species separation of the resultant images takes into account the spectral complexity of the chemical species in addition to magnetic resonance signal decay associated with transverse relaxation. Full resolution maps of R2* are thus capable of being produced while also allowing for the production of images depicting the separated chemical species that are corrected for transverse relaxation associated signal decays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.