The Evaluation of Wallerian Degeneration in Chronic Paediatric Middle Cerebral Artery Infarction Using Diffusion Tensor MR Imaging

2004 ◽  
Vol 18 (3) ◽  
pp. 240-247 ◽  
Author(s):  
Pek-Lan Khong ◽  
Lin-Jiang Zhou ◽  
Gaik-Cheng Ooi ◽  
Brian H.Y. Chung ◽  
Raymond T.F. Cheung ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Wallerian Degeneration ◽  
Diffusion Tensor ◽  
Middle Cerebral Artery Infarction ◽  
Diffusion Tensor Mr Imaging

scholarly journals Changes in Bihemispheric Structural Connectivity Following Middle Cerebral Artery Infarction

2022 ◽  
Vol 12 (1) ◽  
pp. 81
Author(s):  
Dae Hyun Kim ◽  
Hyunkoo Kang
Keyword(s):  
Corpus Callosum ◽  
Middle Cerebral Artery ◽  
Cerebral Artery ◽  
Diffusion Tensor ◽  
Structural Connectivity ◽  
Motor Impairment ◽  
Middle Cerebral Artery Infarction ◽  
Chronic Group ◽  
Association Area ◽  
Upper Extremity Motor Impairment

This study investigated the changes in the structural connectivity of the bilateral hemispheres over time following a middle cerebral artery infarction. Eighteen patients in the subacute group and nine patients in the chronic group with mild upper extremity motor impairment (Fugl-Meyer motor assessment score for the upper limb > 43) following middle cerebral artery infarction were retrospectively evaluated in this study. All the patients underwent T1-weighted and diffusion tensor imaging. Tract-based statistical analyses of fractional anisotropy were used to compare the changes in the bilateral structural connectivity with those of age-matched normal controls. The corticospinal tract pathway of the affected hemisphere, corpus callosum, and corona radiata of the unaffected hemisphere had decreased structural connectivity in the subacute group, while the motor association area and anterior corpus callosum in the bilateral frontal lobes had increased structural connectivity in the chronic group. The bilateral hemispheres were influenced even in patients with mild motor impairment following middle cerebral artery infarction, and the structural connectivity of the bilateral hemispheres changed according to the time following the stroke.

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