Dextran‐magnetite particles: Contrast‐enhanced MRI of blood–brain barrier disruption in a rat model

Jeff W.M. Bulte, Martinus W.A. de Jonge, Richard L. Kamman, K. Gwan Go, Fred Zuiderveen, Bert Blaauw, John A. Oosterbaan, T. Hauw, Lou de Leij

Research output: Contribution to journalArticle

Abstract

Dextran‐magnetite particles (DMP) were studied for their use as a MR contrast agent to visualize lesions with a blood‐brain barrier (bbb) disruption. A freezing injury to the rat cerebral cortex was used as a model of bbb disruption. The biodistribution of iv‐injected DMP was studied using atomic absorption spectrophotometry, electron microscopy, and MRI. One hour after injection, focal accumulation of the particles in capillary endothelial cells could be demonstrated in the freezing lesion. Despite the observation that the relaxivity of DMP in vivo appears to be less well pronounced than that in vitro, the MR imaging studies show that DMP can be used to visualize bbb disruption with adequate contrast. © 1992 Academic Press, Inc.

Original languageEnglish (US)
Pages (from-to)215-223
Number of pages9
JournalMagnetic resonance in medicine
Volume23
Issue number2
DOIs
StatePublished - Feb 1992
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Bulte, J. W. M., de Jonge, M. W. A., Kamman, R. L., Go, K. G., Zuiderveen, F., Blaauw, B., Oosterbaan, J. A., Hauw, T., & de Leij, L. (1992). Dextran‐magnetite particles: Contrast‐enhanced MRI of blood–brain barrier disruption in a rat model. Magnetic resonance in medicine, 23(2), 215-223. https://doi.org/10.1002/mrm.1910230203