Volume 7 Number 4 (Aug. 2015)
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IJCEE 2015 Vol.7(4): 248-260 ISSN: 1793-8163
DOI: 10.17706/IJCEE.2015.7.4.248-260

Analysis of Clinical Percussion Signals Using Matching Pursuit

Jeffery Dech, Moinuddin Bhuiyan, Roman Gr. Maev
Abstract—Clinical Percussion is a method of eliciting sounds from the body by tapping with either a percussion hammer or fingers to determine the area under the perused is air filled, fluid filled, or solid, and is used in clinical examinations to assess the condition of the thorax or abdomen. Successful diagnosis today is still highly subjective and dependent’s on physician skill, experience and require quite surrounding areas. An automated system capable of delivering standardized percussion analysis would remove these limitations on the technique and allow for its usage by those without such specialized training and years of necessary experience. For this to be possible, efficient and informative signal processing algorithms must be employed. In this investigation, clinical percussions from healthy volunteers taken by trained medical professionals were analysed via the Matching Pursuit (MP) algorithm. Various types of possible dictionaries are discussed comparing their efficiency and convergence behaviour. Noise filtering methods are discussed and a noise reduction method based on MP analysis results is presented.MP is also compared to other methods for representing clinical percussions with regards to informativeness and efficiency. MP is O(nlogn) which is more efficient than current methods which have a complexity of at least O(n^3).

Index Terms—Digital signal processing, medical percussion, matching pursuit, pneumothorax.

The authors are with the Department of Physics, University of Windsor, 401 Sunset Ave., Windsor, Ontario N9B 3P4, Canada. Moinuddin Bhuiyan and Roman Gr. Maev are also with the Institute for Diagnostic Imaging Research, University of Windsor, 401 Sunset Avenue, Windsor Ontario N9B 3P4 Canada.

Cite:Jeffery Dech, Moinuddin Bhuiyan, Roman Gr. Maev, "Analysis of Clinical Percussion Signals Using Matching Pursuit," International Journal of Computer and Electrical Engineering vol. 7, no. 4, pp. 248-260, 2015.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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