Evaluation of White Matter Trajectories using MR Diffusion Tensor Tractography in Brain Tumors
- VernacularTitle:磁共振弥散张量纤维束成像在评估脑肿瘤白质纤维束变化中的价值
- Author:
Gang GUO
;
Guolin MA
;
Qihua CHENG
- Publication Type:Journal Article
- Keywords:
brain;
tumor;
MR diffusion tensor imaging
- From:
Journal of Practical Radiology
2001;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the value of MR diffusion tensor tractography(DTT) in evaluating the white matter(WM) tracts in cerebral neoplasm.Methods Fiber tractography was used in this study to assess tumour-induced changes in WM trajectories in three cases of cerebral neoplasm: glioblastoma multiforme, meningioma and anaplastic astrocytoma.Results Three patterns of WM alteration were identified:(1) disruption;(2) displacement and (3) infiltration. Tumor disruption of WM tracts was observed in glioblastoma multiforme, in which the terminated fibers could crossed the corpus callosum. In meningioma, DTT illustrated bulk displacement ,remnant and separation of WM tracts.In anaplastic astrocytoma,WM tracts were disrupted and infiltrated by tumors. Conclusion The changes of WM tracts on DTT are correlated with the clinical and histopathological features of the tumor.
