Magnetic resonance imaging method and system with optimal variable flip angles
US11047942B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Oct 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5618
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and system for improving the quality of MR images acquired with optimal variable flip angles includes receiving MRI parameters for a target tissue, selecting at least one objective function from a plurality of objective functions, simulating a relationship between each flip angle and the at least one objective functions based on the MRI parameters, determining optimal variable flip angle distribution to reach optimization of the at least one objective function for whole acquisition of the MR image, selecting or optimizing a k-space strategy, applying a plurality of radio frequency (RF) pulses with the optimal variable flip angle distribution and the k-space strategy to a target area in an object, receiving MR signals from the target area, the MR signals corresponding to the plurality of RF pulses, acquiring, in the k-space strategy, k-space lines based on the MR signals, and reconstructing the MR image from the k-space lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.