Format

Send to

Choose Destination
NMR Biomed. 2008 Oct;21(8):799-808. doi: 10.1002/nbm.1256.

Longitudinal diffusion tensor imaging in a rat brain glioma model.

Author information

1
Department of Radiology, University of Arizona, Tucson, AZ, USA.

Abstract

In order to investigate the properties of water motion within and around brain tumors as a function of tumor growth, longitudinal diffusion tensor imaging (DTI) was carried out in a rat brain glioma (C6) model. As tumors grew in size, significant anisotropy of water diffusion was seen both within and around the tumor. The tissue water surrounding the tumor exhibited high planar anisotropy, as opposed to the linear anisotropy normally seen in white matter, indicating that cells were experiencing stress in a direction normal to the tumor border. When tumors were sufficiently large, significant anisotropy was also seen within the tumor because of longer-range organization of cancer cells within the tumor borders. These findings have important implications for diffusion-weighted MRI experiments examining tumor growth and response to therapy.

PMID:
18470959
PMCID:
PMC2857329
DOI:
10.1002/nbm.1256
[Indexed for MEDLINE]
Free PMC Article

Supplemental Content

Full text links

Icon for Wiley Icon for PubMed Central
Loading ...
Support Center