B1 mapping in MRI system using k-space spatial frequency domain filtering
US8077955B2 · kind B2 · utility
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Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Jun 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Frequency filtering of spatially modulated or “tagged” MRI data in the spatial frequency k-space domain with subsequent 2DFT to the spatial domain and pixel-by-pixel arithmetic calculations provide robust ratio values that can be subjected to inverse trigonometric functions to derive B1 maps for an MRI system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.