Field of view increase in magnetic resonance imaging using nonlinear gradients and generalized iterative reconstruction
US10459051B2 · kind B2 · utility
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Key dates
| Filing date | Jan 5, 2017 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 20, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/481
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for increasing field of view (FOV) in magnetic resonance imaging includes determining linear field gradients of associated with a gradient coil of a magnetic resonance (MR) scanner and using the MR scanner to acquire a k-space dataset representative of a patient using a plurality of readout gradient amplitudes. An extended FOV image is generated based on the k-space dataset using an iterative reconstruction process to solve a forward model that incorporates a measurement of gradient distortion as a deviation from the linear field gradients.
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