Magnetic particle imaging method
US10016146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 13, 2016 |
| Grant date | Jul 10, 2018 |
| Priority date | — |
| Expiry date | Aug 20, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/1276
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An MPI method determines calibration and measurement volumes, wherein the calibration volume is larger than the measurement volume and the overall measurement volume is arranged within the calibration volume. Calibration signals are detected and a system matrix S is created. An MPI measuring signal u is recorded, a location-dependent magnetic particle concentration c with magnetic particle concentration values ci within the calibration volume is reconstructed and the magnetic particle concentration values ci are associated with voxels in the calibration volume. Magnetic particle concentration values ci which were associated with voxels outside of the measurement volume are discarded and an MPI image is generated which exclusively contains magnetic particle concentration values ci which were associated with the voxels within the measurement volume. MPI image data are thereby generated with little artifacts within a short time even in case of high magnetic particle densities outside of the measurement volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.