The assessment of asymmetry has always represented one of the most relevant field of research in anatomy, with several applications in reconstructive and aesthetic surgery. This study aims at exposing an innovative protocol for the assessment of asymmetry of cranial structures based on 3D-3D superimposition and mirroring procedures. Five patients who underwent a head CT scan were selected. Three anatomical structures were automatically segmented through ITK-SNAP free software: maxillary sinuses, zygomatic bones and the petrous portion of both temporal bones. The left structure was then reflected automatically into the right image and superimposed over the contralateral one according to the least point-to-point distance on the entire surface. RMS (root mean square) distance was then automatically calculated for each superimposition. In addition, a chromatic map of superimposition was generated, showing the most variable areas between the two sides. Possible statistically significant differences in RMS value according to the three anatomical structures were assessed through one-way ANOVA test (p<0.05). On average, RMS values for maxillary sinuses, zygomatic bones and petrous part of temporal bones were respectively 1.00 mm (SD: 0.27 mm), 0.70 mm (SD: 0.34 mm) and 1.26 mm (SD: 0.17 mm). A significant difference among the symmetry of the three analysed structures was found (p<0.01, ANOVA). A novel approach for the assessment of anatomical asymmetry is suggested, based both on a morphological and a quantitative evaluation of differences between the right and left side skull bones. (Paper 17.066)
Mirroring procedures for the assessment of asymmetry of different anatomical structures of the cranium: a protocol based on 3D-3D superimposition / D. Gibelli, V. Pucciarelli, M. Codari, L. Pisoni, C. Dolci, C. Sforza - In: Proceedings of 3DBODY.TECH / [a cura di] N. D’Apuzzo. - Switzerland : Hometrica Consulting, 2017 Oct. - ISBN 9783033064362. - pp. 66-70 (( Intervento presentato al 8. convegno International Conference and Exhibition on 3D Body Scanning and Processing Technologies : October, 11th - 12th tenutosi a Montreal (QB Canada) nel 2017.
|Titolo:||Mirroring procedures for the assessment of asymmetry of different anatomical structures of the cranium: a protocol based on 3D-3D superimposition|
|Settore Scientifico Disciplinare:||Settore BIO/16 - Anatomia Umana|
|Data di pubblicazione:||ott-2017|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.15221/17.066|
|Tipologia:||Book Part (author)|
|Appare nelle tipologie:||03 - Contributo in volume|