TY - JOUR
TI - Determination of facial symmetry in unilateral cleft lip and palate patients from three-dimensional data: Technical report and assessment of measurement errors
AU - Nkenke, E.
AU - Lehner, B.
AU - Kramer, M.
AU - Haeusler, G.
AU - Benz, S.
AU - Schuster, M.
AU - Neukam, F.W.
AU - Vairaktaris, E.G.
AU - Wurm, J.
JO - THE CLEFT  PALATE-CRANIOFACIAL  JOURNAL
PY - 2006
VL - 43
TODO - 2
SP - 129-137
PB - 
SN - 1055-6656
TODO - 10.1597/04-138.1
TODO - article;  calculation;  cleft lip;  cleft palate;  correlation coefficient;  diagnostic error;  distance perception;  face asymmetry;  Germany;  human;  priority journal;  reliability;  surface property;  three dimensional imaging, Anthropometry;  Child;  Cleft Lip;  Cleft Palate;  Face;  Facial Asymmetry;  Humans;  Image Processing, Computer-Assisted;  Imaging, Three-Dimensional;  Optics
TODO - Objective: To assess measurement errors of a novel technique for the three-dimensional determination of the degree of facial symmetry in patients suffering from unilateral cleft lip and palate malformations. Design: Technical report, reliability study. Setting: Cleft Lip and Palate Center of the University of Erlangen-Nuremberg, Erlangen, Germany. Patients: The three-dimensional facial surface data of five 10-year-old unilateral cleft lip and palate patients were subjected to the analysis. Distances, angles, surface areas, and volumes were assessed twice. Main Outcome Measures: Calculations were made for method error, intraclass correlation coefficient, and repeatability of the measurements of distances, angles, surface areas, and volumes. Results: The method errors were less than 1 mm for distances and less than 1.5° for angles. The intraclass correlation coefficients showed values greater than .90 for all parameters. The repeatability values were comparable for cleft and noncleft sides. Conclusion: The small method errors, high intraclass correlation coefficients, and comparable repeatability values for cleft and noncleft sides reveal that the new technique is appropriate for clinical use.
ER -