Charge neutral complexes of paramagnetic metals as intracellular magnetic resonance imaging contrast agents
US7419654B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 4, 2005 |
| Grant date | Sep 2, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K51/0474
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A contrast agent for magnetic resonance imaging comprising a complex of a paramagnetic cation, preferably Gd+3, Dy+3, and Fe+3 with three equivalents of a charge neutralizing chelator that provides a lipid soluble complex of the paramagnetic cation is described. The complex is retained intracellularly when introduced into a mammalian cell. A method of providing an image of an internal pathology of a patient by magnetic resonance imaging (MRI) by administering the MRI contrast agent or tagged cells to the patient and scanning the patient using magnetic resonance imaging to obtain visible images of the internal pathology of the patient is also set forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.