Hierarchical Analysis of Thorax Models to Measure Tidal Volume

Bernhard Laufer 1 , Sabine Krueger-Ziolek 2 , Knut Moeller 2 , Paul David Docherty 3 , Fabian Hoeflinger 4  and Leonhard Reindl 4
  • 1 Institute of Technical Medicine (ITeM), Furtwangen University,, Villingen-Schwenningen, Germany
  • 2 Institute of Technical Medicine, Furtwangen University,, Villingen-Schwenningen, Germany
  • 3 Department of Mechanical Engineering, University of Canterbury,, Christchurch, New Zealand
  • 4 Department of Microsystems Engineering, University of Freiburg,, Freiburg, Germany

Abstract

Motion tracking of thorax kinematics can be used to determine respiration. However, determining a minimal sensor configuration from 64 candidate sensor locations is associated with high computational costs. Hence, a hierarchical optimization method was proposed to determine the optimal combination of sensors. The hierarchical method was assessed by its ability to quickly determine the sensor combination that will yield optimal modelled tidal volume compared to body plethysmograph measurements. This method was able to find the optimal sensor combinations, in approximately 2% of the estimated time required by an exhaustive search.

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Current Directions in Biomedical Engineering is an open access journal and closely related to the journal Biomedical Engineering - Biomedizinische Technik. CDBME is a forum for the exchange of knowledge in the fields of biomedical engineering, medical information technology and biotechnology/bioengineering for medicine and addresses engineers, natural scientists, and clinicians working in research, industry, or clinical practice.

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