1522-2594/asset/cover.gif?v=1&s=9512352d4133369aa19bc75e4ffa8001ea23b2d9 "Magnetic Resonance in Medicine")
Presented at the SMRM Workshop on Contrast Enhanced Magnetic Resonance, Napa, CA, May 23–25, 1991.
1522-2594/asset/olbannerleft.jpg?v=1&s=24975467ab0122e0901f3eb0202a2b55a9ef5d03)
1522-2594/asset/olbannerright.jpg?v=1&s=c4b5b6f569a7190fcab33641c25e7a9da2960dc8)
SMRM Workshop
The magnetic properties of some materials affecting MR images†
Article first published online: 18 NOV 2005
DOI: 10.1002/mrm.1910220208
Copyright © 1991 Wiley-Liss, Inc., A Wiley Company
Additional Information
How to Cite
Josephson, L., Bigler, J. and White, D. (1991), The magnetic properties of some materials affecting MR images. Magn Reson Med, 22: 204–208. doi: 10.1002/mrm.1910220208
- †
Publication History
- Issue published online: 18 NOV 2005
- Article first published online: 18 NOV 2005
- Manuscript Received: 18 JUL 1991
- Abstract
- References
- Cited By
Abstract
We have compared the magnetic properties of various types of materials known to affect MR images. The materials compared were: (i) MR contrast agents based on chelates of paramagnetic metals (Gd-DTPA, Dy-DTPA); (ii) biological forms of iron (horse spleen ferritin and deoxyhemoglobin); and (iii) a superparamagnetic iron oxide (AMI-25). The properties compared were the magnetic susceptibility and the magnetization. The magnetization and susceptibility of superparamagnetic AMI-25 are far larger than that of ferritin or low molecular weight, paramagnetic chelates. Superparamagnetic iron oxide colloids, like AMI-25, are a uniquely powerful class of magnetic materials. © 1991 Academic Press, Inc.