Patent · US Expired

Method of NMK imaging using a contrast agent comprising particles of a ferromagnetic material

US4863715A · kind A · utility

40Cited by

5References

36Claims

0Family size

Assignee

Nycomed AS · NO

Inventors

Trond Jacobsen · Oslo, NO
Jo Klaveness · Oslo, NO

Key dates

Filing date	Oct 31, 1985
Grant date	Sep 5, 1989
Priority date	—
Expiry date	Oct 31, 2005

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/24
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Ferromagnetic particles, conveniently embedded in or coated by a biotolerable polymer and held in dispersion in a physiologically acceptable dispersion medium, may be used as contrast agents in nmr imaging for the production of images suitable for use in diagnosis. Unlike paramagnetic nmr contrast agents, ferromagnetic nmr contrast agents give particularly good contrast in the T.sub.2 dependent images.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.