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Proceedings Paper

Midsagittal surface measurement of the head: an assessment of craniofacial asymmetry
Author(s): Gary E. Christensen; Hans J. Johnson; Tron Darvann; Nuno Hermann; Jeffrey L. Marsh M.D.
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Paper Abstract

Left/right craniofacial asymmetry is typically measured by comparing distances between standard anatomical landmarks. However, these measurements are of limited use for visualizing and quantifying the asymmetry at non-landmark locations. This work presents a method for calculating, measuring and visualizing the planar deviation of the midsagittal surface for the purpose of craniofacial dysmorphology assessment, pre-operative corrective surgery planning, and post-operative evaluation. A set of midsagittal landmarks are used to define a reference midsagittal plane and to define a non-planar surface that passes through the landmarks. The surface is modeled as a thin-plate spline that can be visualized in 3D using a virtual reality markup language browser and it can be fused with the original volume rendered CT data using VoxelViewTM.

Paper Details

Date Published: 21 May 1999
PDF: 8 pages
Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); doi: 10.1117/12.348617
Show Author Affiliations
Gary E. Christensen, Univ. of Iowa (United States)
Hans J. Johnson, Univ. of Iowa (United States)
Tron Darvann, Univ. of Copenhagen (Denmark)
Nuno Hermann, Univ. of Copenhagen (Denmark)
Jeffrey L. Marsh M.D., Washington Univ. School of Medicine (United States)


Published in SPIE Proceedings Vol. 3661:
Medical Imaging 1999: Image Processing
Kenneth M. Hanson, Editor(s)

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