Imaging method for obtaining spatial distribution of nanoparticles in the body
US9167983B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Aug 13, 2009 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Apr 1, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B5/0515
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A well-posed magnetic imaging method is disclosed that exploits the non-linear behavior of the characteristic time scale of the Néel relaxation for obtaining accurate high-spatial resolution images of magnetic tracers. The method includes placing an object in a selection field (static field) generated by three pairs of orthogonally arranged coil (drive coils), supplying prudently choice currents to the drive coils, a zero field voxel (ZFV) is formed that can be positioned anywhere in the local region of interest (ROI), switching the magnetizing field off, and collecting an image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.