Abstract：
:During reconstructive surgery of the face, one side may be used as a template for the other, exploiting assumed bilateral facial symmetry. The best method to calculate this plane, however, is debated. A new semi-automatic technique for calculating the symmetry plane of the facial skeleton is presented here that uses surface models reconstructed from computed tomography image data in conjunction with principal component analysis and an iterative closest point alignment method. This new technique was found to provide more accurate symmetry planes than traditional methods when applied to a set of 7 human craniofacial skeleton specimens, and showed little vulnerability to missing model data, usually deviating less than 1.5° and 2 mm from the intact model symmetry plane when 30 mm radius voids were present. This new technique will be used for subsequent studies measuring symmetry of the facial skeleton for different patient populations.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Willing RT,Roumeliotis G,Jenkyn TR,Yazdani Adoi
10.1016/j.medengphy.2013.06.006subject
Has Abstractpub_date
2013-12-01 00:00:00pages
1843-9issue
12eissn
1350-4533issn
1873-4030pii
S1350-4533(13)00147-1journal_volume
35pub_type
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