Diagnostic significance of the relative band power of in acute focal cerebral ischemia
10.3760/cma.j.issn.1673-4165.2010.02.002
- VernacularTitle:脑电图相对波段功率在急性局灶性脑缺血中的诊断意义
- Author:
Xiaofeng WANG
;
Zhong JI
;
Yongming WU
;
Suyue PAN
;
Bingxun LU
- Publication Type:Journal Article
- Keywords:
Brain ischemia;
Electroencephalography;
ROC curve
- From:
International Journal of Cerebrovascular Diseases
2010;18(2):87-90
- CountryChina
- Language:Chinese
-
Abstract:
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 shoved asymmetry on all the wave-band RBPs. The RBP of 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 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.
