System and method for calibrating gradient delay in magnetic resonance imaging
US10401462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jul 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/4824
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for magnetic resonance imaging is provided. The method includes acquiring a first set of MR signals and a second set of MR signals by applying a pulse sequence on a subject. The method also includes obtaining a first data line by filling the first set of MR signals into k-space along a first trajectory, and obtaining a second data line by filling the second set of MR signals into k-space along a second trajectory. The method also includes determining a candidate k-space shift based on the first data line and the second data line, and determining a candidate gradient delay based on the candidate k-space shift obtained in each of a plurality of iterations. The method also includes reconstructing an image of the subject based on the candidate gradient delay obtained in the last iteration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.