关键词: 脑出血; 扩散张量成像; 锥体束; 运动功能

Abstract: Objective To evaluate the relationship between pyramidal tract injury in acute intracerebral hemorrhage assessed by MR diffusion tensor tractography(DTT) techniques and motor rehabilitation.Methods Diffusion tensor imaging was performed on 30 patients with basal ganglia or thalamus hemorrhage within 2 weeks after upsets, and the integrity of the pyramidal tracts was assessed by DTT. Motor function rehabilitation was assessed with Barthel Index(BI) after 6 months from upsets.BI scores of the different groups were compared and the correlation was analyzed between the integrity of the pyramidal tracts and the BI scores.Results 7 cases were eliminated because of unsatisfied data and 23 cases were enrolled. BI scores had significant difference among the groups divided by DTT findings of the pyramidal tracts integrity(F =9.693, P <0.01). There was significant correlation between the integrity of the pyramidaltracts in acute stage and the BI scores after 6 months(r =0.733, P <0.01).Conclusion The DTT findings for pyramidal tract in acute intracerebral hemorrhage may be used to predict the motor outcome.

Key words: Intracerebral hemorrhage; Diffusion tensor imaging; Pyramidal tracts; Motor function