频域脑导纳图两种波形的功率谱分析  

Power Spectral Analysis of Two Waveshapes of Frequency Domain Brain Admittance Plethysmograph

作　　者：杨莲芳[1] 崔超英[1] 肖伟[1] 张晓军 

机构地区：[1]江西医学院物理学教研室,南昌330006 [2]南昌市职业病防治所,南昌330003

出　　处：《江西医学院学报》1999年第3期17-20,共4页Acta Academiae Medicinae Jiangxi

基　　金：江西省自然科学基金

摘　　要：利用ＫＴＥＮＧ型双侧脑血流自动检测仪，测量５３ 例脑导纳图波形为陡直型的健康人和２５ 例波形为近弧型的脑动脉硬化患者以及１３ 例高血压患者的功率谱，并将健康组与患者组进行了对比分析。结果显示：患者组与健康组频域脑导纳图功率谱，在基频部分无显著性差异，Ｐ＞００５，而在谐频部分有显著性差异，Ｐ＜ ００５。提示，脑导纳图功率谱为分析头部血管性疾病提供了一种新方法。In this article the KT ENG automatic detector for bilateral cerebral blood flow was used to measure the power spectra of 53 healthy persons with steep waveshape brain admittance plethysmogram and 25 cerebral atherosclerotic and 13 hypertensive patients with nearly arcuate waveshape brain admittance plethysmogram.The results were compared and analysed between the healthy and the sick,showing that there was no significant difference in the basic incessant part ( P >0 05) but notable difference in harmonious incessant part ( P <0.05). It is suggested that the power spectra of brain admittance plethysmograpy provides a new method for the analysis of cerebrovascular disease.

关 键 词：脑导纳图测量 谱密度 基频 功率谱 谱分析 

分 类 号：R741.044[医药卫生—神经病学与精神病学]