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学科主题: 临床医学
题名:
Assessing severity of obstructive sleep apnea by fractal dimension sequence analysis of sleep EEG
作者: Zhang, J.2,3; Yang, X. C.2; Luo, L.2; Shao, J.2; Zhang, C.1; Ma, J.1,3; Wang, G. F.1,3; Liu, Y.4; Peng, C. -K.4; Fang, J.2,3
关键词: OSAHS ; Fractal dimension ; AHI
刊名: PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
发表日期: 2009-10-15
DOI: 10.1016/j.physa.2009.07.005
卷: 388, 期:20, 页:4407-4414
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: NONSTATIONARY TIME-SERIES
英文摘要:

Different sleep stages are associated with distinct dynamical patterns in EEG signals. In this article, we explored the relationship between the sleep architecture and fractal dimension (FD) of sleep EEG. In particular, we applied the FD analysis to the sleep EEG of patients with obstructive sleep apnea-hypopnea syndrome (OSAHS), which is characterized by recurrent oxyhemoglobin desaturation and arousals from sleep, a disease which received increasing public attention due to its significant potential impact on health. We showed that the variation of FD reflects the macrostructure of sleep. Furthermore. the fast fluctuation of FD, as measured by the zero-crossing rate of detrended FD (zDFD), is a useful indicator of sleep disturbance, and therefore, correlates with apnea-hypopnea index (AHI), and hourly number of blood oxygen saturation (SpO(2)) decreases greater than 4%, as obstructive apnea/hypopnea disturbs sleep architecture. For practical purpose, a modified index combining zDFD of EEG and body mass index (BMI) may be useful for evaluating the severity of OSAHS symptoms. (C) 2009 Elsevier B.V. All rights reserved.

语种: 英语
项目资助者: Beijing Imagart Digital Company
WOS记录号: WOS:000269753700012
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/59757
Appears in Collections:北京大学第一临床医学院_呼吸和危重症医学科_期刊论文

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作者单位: 1.Peking Univ, Dept Biomed Engn, Beijing 100871, Peoples R China
2.Peking Univ, Hosp 1, Dept Pulm Med, Beijing 10034, Peoples R China
3.Peking Univ, Acad Adv Interdisciplinary, Biomed X Res Ctr, Beijing 100871, Peoples R China
4.Harvard Univ, Beth Israel Deaconess Med Ctr, Sch Med,Div Interdisciplinary Med & Biotechnol, Margret & HA Rey Inst Nonlinear Dynam Physiol & M, Boston, MA 02215 USA

Recommended Citation:
Zhang, J.,Yang, X. C.,Luo, L.,et al. Assessing severity of obstructive sleep apnea by fractal dimension sequence analysis of sleep EEG[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2009,388(20):4407-4414.
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