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Classification of Neck Movement Patterns Related to Whiplash-Associated Disorders Using Neural Networks
Department of Biomedical Engineering and Informatics, University Hospital, Umeå, Sweden.
Department of Biomedical Engineering and Informatics, University Hospital, Umeå, Sweden.
Department of Biomedical Engineering and Informatics, University Hospital, Umeå, Sweden.
Community Medicine and Rehabilitation, University Hospital, Umeå, Sweden.
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2003 (English)In: IEEE transactions on information technology in biomedicine, ISSN 1089-7771, E-ISSN 1558-0032, Vol. 7, no 4, 412-418 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a new method for classification of neck movement patterns related to Whiplash-associated disorders (WAD) using a resilient backpropagation neural network (BPNN). WAD are a common diagnosis after neck trauma, typically caused by rear-end car accidents. Since physical injuries seldom are found with present imaging techniques, the diagnosis can be difficult to make. The active range of the neck is often visually inspected in patients with neck pain, but this is a subjective measure, and a more objective decision support system, that gives a reliable and more detailed analysis of neck movement pattern, is needed. The objective of this study was to evaluate the predictive ability of a BPNN, using neck movement variables as input. Three-dimensional (3-D) neck movement data from 59 subjects with WAD and 56 control subjects were collected with a ProReflex system. Rotation angle and angle velocity were calculated using the instantaneous helical axis method and motion variables were extracted. A principal component analysis was performed in order to reduce data and improve the BPNN performance. BPNNs with six hidden nodes had a predictivity of 0.89, a sensitivity of 0.90 and a specificity of 0.88, which are very promising results. This shows that neck movement analysis combined with a neural network could build the basis of a decision support system for classifying suspected WAD, even though further evaluation of the method is needed.

Place, publisher, year, edition, pages
IEEE , 2003. Vol. 7, no 4, 412-418 p.
Keyword [en]
Decision support system, Head rotation, Instantaneous helical axis, Motion analysis, Neural network, Resilient backpropagation, Whiplash-associated disorders (WAD)
National Category
Other Medical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-46363DOI: 10.1109/TITB.2003.821322ISI: 000188955900018PubMedID: 15000367OAI: oai:DiVA.org:liu-46363DiVA: diva2:267259
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13Bibliographically approved

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Gerdle, Björn

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