MRI findings of Wallerian degeneration in pyramidal tract after cerebral injury
10.3760/cma.j.issn.1008-6706.2015.12.007
- VernacularTitle:脑损伤后锥体束华勒氏变性的 MRI 表现
- Author:
Yang YANG
;
Su YAN
;
Liwei WU
;
Hairong SHAN
- Publication Type:Journal Article
- Keywords:
Wallerian degeneration;
Pyramidl tracts;
Magnetic resonance imaging
- From:
Chinese Journal of Primary Medicine and Pharmacy
2015;(12):1779-1781
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the MRI findings of Wallerian degeneration in pyramidal tract after cere-bral injury for improving the diagnosis accuracy.Methods The MRI findings of Wallerian degeneration in pyramidal tract in 25 cases were analyzed in association with the primary cerebral injury.Results All the primary diseases were above the tentorium of cerebellum in 25 cases,MRI in 2 cases demonstrated a continuous thin band -like long T1 or isometric T1 and long T2 abnormal changes in pyramidal tract,hyperintensify on FLAIR and DWI.2 cases showed hypointensify on T1 WI,hyperintensify on T2 WI and FLAIR,isointensity on DWI.21 cases showed hypointensify on T1 WI,hyperintensify on T2 WI and FLAIR,isointensity or hypointensify on DWI with brainstem atrophy.Conclusion MRI is valuable in the diagnosis of Wallerian degeneration in pyramidal tract after cerebral injury.
