Relaxometry
US8558546B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Apr 13, 2011 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Apr 11, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5614
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus, methods, and other embodiments associated with multi-scale orthogonal matching pursuit (OMP) for magnetic resonance imaging (MRI) relaxometry are described. One example method includes controlling a nuclear magnetic resonance (NMR) apparatus to cause selected nuclei in an item to resonate by applying radio frequency (RF) energy to the item and then acquiring multiple series of magnetic resonance (MR) images of the item, the series of MR images having different scales. The example method includes controlling the NMR apparatus to produce a combined signal evolution from a first signal evolution associated with a first series of MR images and a second signal evolution associated with a second series of MR images and to characterize relaxation of the selected nuclei in the item as a function of an OMP that compares the combined signal evolution to a set of combined comparative signal evolutions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.