Single pulse analysis of intracranial pressure for a hydrocephalus implant

Author

Elixmann, I.M. ; Hansinger, J. ; Goffin, C. ; Antes, S. ; Radermacher, Klaus ; Leonhardt, Steffen

Author_Institution

Helmholtz Inst. for Biomed. Eng., RWTH Aachen Univ., Aachen, Germany

fYear

2012

fDate

Aug. 28 2012-Sept. 1 2012

Firstpage

3939

Lastpage

3942

Abstract

The intracranial pressure (ICP) waveform contains important diagnostic information. Changes in ICP are associated with changes of the pulse waveform. This change has explicitly been observed in 13 infusion tests by analyzing 100 Hz ICP data. An algorithm is proposed which automatically extracts the pulse waves and categorizes them into predefined patterns. A developed algorithm determined 88%±8% (mean ±SD) of all classified pulse waves correctly on predefined patterns. This algorithm has low computational cost and is independent of a pressure drift in the sensor by using only the relationship between special waveform characteristics. Hence, it could be implemented on a microcontroller of a future electromechanic hydrocephalus shunt system to control the drainage of cerebrospinal fluid (CSF).

Keywords

brain; medical signal processing; microcontrollers; pattern classification; pressure measurement; prosthetics; ICP data; cerebrospinal fluid drainage control; electromechanic hydrocephalus shunt system; frequency 100 Hz; hydrocephalus implant; infusion tests; intracranial pressure waveform single pulse analysis; microcontroller; pressure drift; pulse wave extraction; Algorithm design and analysis; Classification algorithms; Fluids; Heuristic algorithms; Implants; Iterative closest point algorithm; Microcontrollers; Algorithms; Arterial Pressure; Electrodes, Implanted; Humans; Hydrocephalus; Intracranial Pressure; Pattern Recognition, Automated; Signal Processing, Computer-Assisted; Wavelet Analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE

Conference_Location

San Diego, CA

ISSN

1557-170X

Print_ISBN

978-1-4244-4119-8

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/EMBC.2012.6346828

Filename

6346828