Cartesian-radial hybrid k-space trajectory for volumetric imaging
US10996300B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 5, 2018 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jan 5, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56509
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An MRI system uses a Cartesian-radial hybrid k-space trajectory to capture three-dimensional k-space data and reconstruct an image of an area of interest of a subject. The MRI system performs a series of k-space acquisitions to collect the data. A first k-space acquisition includes acquiring a two-dimensional EPI projection in a first plane parallel to a frequency-encoding direction and acquiring additional two-dimensional EPI projections in planes that are radially shifted about a center axis parallel to the frequency-encoding direction with respect to the first plane, until a selected number of projections are acquired. Each subsequent k-space acquisition includes acquiring an additional set of two-dimensional EPI projections in all of the planes in which an EPI projection was acquired during the first k-space acquisition, each additional set of EPI projections being shifted along a respective plane in a direction perpendicular to the frequency-encoding direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.