Midsagittal surface measurement of the head: an assessment of craniofacial asymmetry

Gary E. Christensen; Hans J. Johnson; Tron Darvann; Nuno Hermann; Jeffrey L. Marsh M.D.

doi:10.1117/12.348617

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21 May 1999 Midsagittal surface measurement of the head: an assessment of craniofacial asymmetry

Gary E. Christensen, Hans J. Johnson, Tron Darvann, Nuno Hermann, Jeffrey L. Marsh M.D.

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Proceedings Volume 3661, Medical Imaging 1999: Image Processing; (1999) https://doi.org/10.1117/12.348617
Event: Medical Imaging '99, 1999, San Diego, CA, United States

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 VoxelView^TM.

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Gary E. Christensen, Hans J. Johnson, Tron Darvann, Nuno Hermann, and Jeffrey L. Marsh M.D. "Midsagittal surface measurement of the head: an assessment of craniofacial asymmetry", Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); https://doi.org/10.1117/12.348617

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