Integrative Analysis of Intracranial Pressure and R-R Interval Signals: a Study of ICP B-Wave using Causal Coherence

Author

Hu, Xiao ; Nenov, Valeriy ; Bergsneider, Marvin

Author_Institution

Div. of Neurosci., California Univ., Los Angeles, CA

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

464

Lastpage

467

Abstract

Causal coherence analysis was applied to beat-to-beat mean intracranial pressure (ICP) and RR interval signals that were recorded from twelve normal pressure hydrocephalus patients. Data were organized into two groups including an ICP B-Wave group and a control baseline group. Maximal classic coherence between ICP and RR interval within [0.04-0.15] Hz was found to be significantly greater than zero for both B-wave and control groups. Causal coherence analysis further revealed that feedforward coherence due to RR interval´s effect on ICP always exists for both B-wave and baseline ICP state while feedback coherence from ICP to RR interval was enhanced during the occurrence of B-wave

Keywords

biological fluid dynamics; brain; neurophysiology; ICP B-wave; R-R interval signals; beat-to-beat mean intracranial pressure; causal coherence analysis; causal spectral analysis; feedback coherence; feedforward coherence; integrative analysis; normal pressure hydrocephalus patient; Blood flow; Cardiology; Cranial pressure; Frequency; Heart rate variability; Information analysis; Neurosurgery; Signal analysis; Signal processing; Spectral analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260755

Filename

4461787