脑电图相对波段功率在急性局灶性脑缺血中的诊断意义  

Diagnostic significance of the relative band power of EFG in acute focal cerebral ischemia

作　　者：王晓锋[1] 姬仲[1] 吴永明[1] 潘速跃[1] 陆兵勋[1] 

机构地区：[1]南方医科大学南方医院神经内科,广州510515

出　　处：《国际脑血管病杂志》2010年第2期87-90,共4页International Journal of Cerebrovascular Diseases

摘　　要：目的探讨脑电图相对波段功率（relative band power，RBP）在急性局灶性脑缺血（acute focal cerebral ischemia，AFC1）中的诊断意义，方法对20例神经重症监护病房（neurological intensive care unit，NICU）AFCI患者（51处病灶）和同期NICU中EEG正常的患者20例（对照组）进行脑电监护。观察两侧RBP的改变并对比分析，比较梗死组与对照组RBP。采用接受者操作特性曲线分析评价各波段RBP的诊断能力？结果AFCI在各波段RBP上均表现为不对称性，病灶侧8波RBP较健侧显著增高（P〈0．01），α、θ和β波的RBP均显著降低（P〈0．05）。与对照组比较，梗死组δ波RBP显著增高（P〈0．01），α和β波的RBP均显著降低（P〈0．01）。α波RBP诊断准确性最高，β和δ波对AFCI诊断也有意义。结论RBP对AFCI的早期诊断有重要意义。Objective To investigate the diagnostic significance of the relative band power （RBP） of EEG in acute focal cerebral ischemia （AFCI）. Methods EEG monitoring was performed in 20 patients with AFCI （51 lesions） in neurological intensive care unit （NICU） and 20 patients with normal EEG （control group） in NICU. The changes of bilateral RBP were observed and analyzed comparatively. RBP in the infarction group was compared with that in the control group, The diagnostic capabilities of all wave-band RBPs were assessed with the receiver operating characteristic （ROC） analysis. Results AFCI showed asymmetry on all the wave-band RBPs. The RBP of δwave on the lesion side was significantly higher than that on the normal side （P 〈0.01 ）. RBPs of α, β and θ waves were decreased significantly （P 〈0.05）. RBP of δ wave in the infarction group was increased significantly compared to the control group （P 〈 0.01 ）. RBPs of α and β waves were decreased significantly （P 〈0.01 ）. The diagnostic accuracy of the RBP of α wave was the highest, and both β and δ waves also had significance for the diagnosis of AFCI. Conclusions RBP had an important significance for the early diagnosis of AFCI. Conclusions RBP had an important significance for the early diagnosis of AFCI.

关 键 词：脑缺血 脑电描记术 ROC曲线 

分 类 号：R743.3[医药卫生—神经病学与精神病学]