Shifting of artifacts by reordering of k-space
US6683454B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Mar 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5673
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for shifting of motion based artifacts in images produced with an magnetic resonance imaging system configured to: select a segment of a plurality of segments comprising a selected number of k-space lines of k-space data for a temporal series and select a time interval from a plurality of time intervals for acquisition. The magnetic resonance imaging system is also configured to acquire N sets of k-space lines comprising every Nth k-space line of the segment for successive 1/N portions of said time interval and repeating the acquiring for successive sets of the N sets of k-space lines and wherein N is an integer greater than one. The acquisition is repeated for each time interval of the plurality of time intervals and for each segment of the plurality of segments. The k-spaced data are reconstructed employing a time-weighted average based on respective time of acquisition of the k-space lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.