Virtual neuropathology: three-dimensional visualization of lesions due to toxic insult.


Journal Article

A first-pass approach incorporating high-field magnetic resonance imaging (MRI) was used for rapid detection of neuropathologic lesions in fixed rat brains. This inherently 3-dimensional and nondestructive technique provides high-resolution, high-contrast images of fixed neuronal tissue in the absence of sectioning or staining. This technique, magnetic resonance microscopy (MRM), was used to identify diverse lesions in 2 well-established rat neurotoxicity models. The intrinsic contrast in the images delineated lesions that were identified using a battery of histologic stains, some of which would not be used in routine screening. Furthermore, the MRM images provided the locations of lesions, which were verified upon subsequent sectioning and staining of the same samples. The inherent contrast generated by water properties is exploited in MRM by choosing suitable pulse sequences, or proton stains. This approach provides the potential for a comprehensive initial MRM screen for neurotoxicity in preclinical models with the capability for extrapolation to clinical analyses using classical MRI.

Full Text

Duke Authors

Cited Authors

  • Lester, DS; Pine, PS; Delnomdedieu, M; Johannessen, JN; Johnson, GA

Published Date

  • January 2000

Published In

Volume / Issue

  • 28 / 1

Start / End Page

  • 100 - 104

PubMed ID

  • 10668995

Pubmed Central ID

  • 10668995

International Standard Serial Number (ISSN)

  • 0192-6233

Digital Object Identifier (DOI)

  • 10.1177/019262330002800112


  • eng

Conference Location

  • United States