Magnetic resonance cest imaging sequence and device based on frequency stabilization module
US11237239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2019 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Sep 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5607
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic resonance CEST imaging sequence and device based on a frequency stabilization module are provided. It includes following steps: first, in the frequency stabilization module, exciting a target slice with a small-flip-angle radio frequency pulse, and collecting three lines of non-phase-encoded k-space data; second, obtaining an estimated value of the frequency drift of the main magnetic field by calculating the phase difference between the three lines of non-phase encoded k-space data; third, adjusting a center frequency of the radio frequency pulse based on the calculation result of the frequency drift of the main magnetic field, to realize a real-time correction of the frequency drift of the main magnetic field; and fourth, performing conventional magnetic resonance CEST imaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.