Diffusion-weighted magnetic resonance imaging using 3D mosaic segmentation and 3D navigator phase correction
US8760163B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 10, 2011 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jun 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/5676
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a magnetic resonance apparatus and operating method therefore, 3D navigator data are acquired and are used to correct spatially varying phase errors in contemporaneously acquired imaging data in each shot of a multi-shot data acquisition sequence. A mosaic sampling scheme is used to enter the diffusion-weighted magnetic resonance data and the navigator data into k-space respectively in blocks that each form a subset of the entirety of k-space. The navigator data in each shot are entered into a block that is located at the center of k-space, and, in each shot, the corresponding image data are entered into an offset block in k-space, that is offset in at least one spatial direction from the navigator data block. The offset is varied from shot-to-shot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.