Application of MR diffusion imaging to the diagnosis of diffuse axonal injury
- VernacularTitle:磁共振弥散成像在弥漫性轴突损伤诊断中的应用
- Author:
Liang QIAO
;
Handong WANG
- Publication Type:Journal Article
- Keywords:
Diffuse axonal injury;
Diffusion weighted imaging;
Diffusion tensor imaging;
Fiber tractography
- From:
Journal of Medical Postgraduates
2003;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Magnetic resonance diffusion imaging contrasts by water molecule diffusion,reflecting water diffusion status.Owing to the unique mechanism,diffusion imaging is sensitive to anatomic alteration of fiber tract and becomes an important technique in the detection of diffuse axonal injury.Diffusion-weighted imaging shows DAI lesion via emphasizing diffusion composition,diffusion tensor imaging is more sensitive to diffusion anisotropy of the lesion,and fiber tractography can directly demonstrate fiber disruption.MR-diffusion imaging not only improves conspicuity of DAI,but also has grading and prognostic value.
