Method for establishing and/or reducing artifacts, method for establishing a local concentration distribution and system for visually representing a corrected overall image data record
US10796465B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2019 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Jun 5, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2211/424
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for establishing and/or reducing artifacts that arise when reconstructing (R) an MPI overall image data record from MPI signal data and an appended system matrix (SMapp(r,f)), wherein the appended system matrix (SMapp(r,f)) includes system matrices of different particle classes (P1, P2). The method includes setting a selection region (cvn(r)) of a reconstructed MPI overall image data record (cn(r)), producing virtual signal data (sn(f)) by inverse transformation of the selection region, reconstructing a virtual overall image data record (c′vn(r)) from the virtual signal data and the appended system matrix, setting an artifact region (cartifact_n(r)) within the reconstructed virtual overall image data record so that the artifact region has only voxels lying outside of the selection region, and assigning the image data present in the artifact region as artifact image data (cartifact_n(r)). This permits ghost artifacts to be corrected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.