Multi-color quantitative magnetic nanoparticle imaging method and system based on trapezoidal wave excitation
US11579216B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2022 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Jul 31, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T11/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multi-color quantitative magnetic nanoparticle imaging method and system based on trapezoidal wave excitation solves the problem that the existing technology cannot implement multi-color quantitative magnetic particle imaging. The method includes: constructing, based on hysteresis effect and hysteresis inertial growth differences of n superparamagnetic iron oxide nanoparticles (SPIOs) under trapezoidal wave excitation, an equation set of quality of n SPIOs in a to-be-tested sample formed by any composition of n SPIO standard products; solving the equation set to obtain the quality distribution of the to-be-tested sample at position r; and performing rearrangement, color assignment, and image merging on the quality distribution to implement multi-color quantitative imaging of various particles in magnetic particle imaging (MPI). The method broadens the functions of MPI to realize multi-color quantitative imaging, such that MPI has greater potential for application in the medical field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.