Method for calibration-free locally low-rank encouraging reconstruction of magnetic resonance images
US9709650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5611
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for reconstructing an image of a subject from multi-coil data acquired with an array of radio frequency (“RF”) receiver coils that form a part of a magnetic resonance imaging (“MRI”) system without the need for coil sensitivity calibration is provided. A coil data set is acquired for each of the RF receiver coils, for example, by undersampling k-space. A set of image blocks that defines the location and size of each of a plurality of image blocks in the image domain is then selected. The acquired coil data sets and selected image block set are then used to jointly estimate a coil image for each of the plurality of RF receiver coils while promoting locally-low rank structure in the coil images. These coil images are then combined to produce the target image of the subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.