目的 应用3.0T磁共振动脉自旋 标记(ASL)技术对比正常儿童与行颈总动 脉外膜交感神经网剥脱术前后的脑瘫患 儿脑血流量(CBF)发生的变化情况差异。 方法 应用Achieva/Intera PHILIPS 3.0T 核磁共振仪对30例正常儿童与30例行颈总 动脉外膜交感神经网剥脱术前一周内、术 后14天的单侧痉挛型脑性瘫痪患儿进行 常规序列、DWI、ASL等序列扫描，应用 MriCloud后处理工作站获得被检者大脑双 侧额叶、颞叶、顶叶、中央前回、内囊区 域、基底节、丘脑、小脑区域的CBF值， 使用配对t检验对数据进行统计学分析。 结果 正常儿童与脑瘫患儿进行对比，脑 瘫患儿患侧大脑皮质区、中央前回、基 底节、内囊、小脑区运动相关区域CBF较 低，差异有统计学意义；行颈总动脉外膜 交感神经网剥脱术后脑瘫患儿患侧上述区 域脑血流量有改善。结论 通过磁共振ASL 技术发现颈总动脉外膜交感神经网剥脱术 是一种有效的治疗脑性瘫痪的手术方法， 可以有效提高患儿脑血流量，改善大脑缺 血缺氧状态，缓解患儿临床症状。

Objective Comparison of changes in cerebral blood flow (CBF) between normal children and cerebral palsy children by using arterial spin labeling (ASL), Depament of Radiology, The second Affiliated Hospital of Xinjiang medical University,before and after the cervical perivascular sympathectomy. Methods Using Achieva/Intera PHILIPS 3.0 T magnetic resonance imaging scan 30 normal children and 30 unilateral spastic cerebral palsy children who underwent cervical perivascular sympathectomy preoperative one week and postoperative 14 days in regular sequence, DWI, ASL and other sequences. The CBF value of different areas of the clients was obtained by MriCloud post-processing workstation, which include Bilateral of frontal lobe, the temporal lobe, the parietal lobe. Central front return,Inner sac region,The basal ganglia,The thalamus,The cerebellum were compared between two groups, A paired t-test was used for statistical analysis. Results In comparison to the control group. The CBF values in the patient group decreased. There were significant differences between two groups in Cerebral cortex, anterior central gyrus, basal ganglia, inner capsule, cerebellum in the affected side,children with cerebral palsy had improved Cerebral blood flow in above areas after the cervical perivascular sympathectomy. Conclusion ASL found that cervical perivascular sympathectomy is an effective treatment of cerebral palsy surgery,And can significantly improve the CBF of children with cerebral palsy,improving cerebral ischemia and hypoxia,relieve the clinical symptoms of children.