A Statistical Model of Head Asymmetry in Infants with Deformational Plagiocephaly

Stéphanie Lanche, Tron Andre Darvann, Hildur Ólafsdóttir, Nuno V. Hermann, Andrea E. Van Pelt, Daniel Govier, Marissa J. Tenenbaum, Sybill Naidoo, Per Larsen, Sven Kreiborg, Rasmus Larsen, Alex A. Kane

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    Deformational plagiocephaly is a term describing cranial asymmetry and deformation commonly seen in infants. The purpose of this work was to develop a methodology for assessment and modelling of head asymmetry. The clinical population consisted of 38 infants for whom 3-dimensional surface scans of the head had been obtained both before and after their helmet orthotic treatment. Non-rigid registration of a symmetric template to each of the scans provided detailed point correspondence between scans. A new asymmetry measure was defined and was used in order to quantify and localize the asymmetry of each infant's head, and again employed to estimate the improvement of asym- metry after the helmet therapy. A statistical model of head asymmetry was developed (PCA). The main modes of variation were in good agreement with clinical observations, and the model provided an excellent and instructive quantitative description of the asymmetry present in the dataset.
    Original languageEnglish
    Title of host publicationScandinavian Conference on Image Analysis 2007
    Publication date2007
    Publication statusPublished - 2007
    Event15th Scandinavian Conference on Image Analysis - Aalborg, Denmark
    Duration: 10 Jun 200724 Jun 2007
    Conference number: 15


    Conference15th Scandinavian Conference on Image Analysis


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