Method and apparatus of acquiring large FOV images without slab-boundary artifacts
US6801034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2001 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Dec 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/54
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method are disclosed using incremental table motion and partial data acquisition for increased volume coverage to reconstruct MR images across a large FOV without significant slab-boundary artifacts. At each table position, full z-encoding data are acquired for a subset of the kx-ky data. The table is stepped through a number of positions over the desired FOV and MR data are acquired over the plurality of table increments. Since full z-data are acquired for each slab, the data can be Fourier transformed in z, sorted, and then aligned to match anatomic z locations. The fully sampled and aligned data is then Fourier transformed in x and y to reconstruct the final image that is free of slab-boundary artifacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.