Analysis of Age-Related Changes in Asian Facial Skeletons Using 3D Vector Mathematics on Picture Archiving and Communication System Computed Tomography
| Autor: | Sung Wan Byun, Jee Soo Park, Jung Ho Bae, Soojin Kim, So Jung Kim(김소정) |
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| Rok vydání: | 2014 |
| Předmět: |
Adult
Male Aging Computed tomography Young Adult Asian People Age related Posterior lacrimal crest Republic of Korea medicine Image Processing Computer-Assisted Maxilla Humans Euclidean vector Aged Zygoma medicine.diagnostic_test Asian Facial bones Skeletal structures computed tomography General Medicine Anatomy Middle Aged Skeleton (computer programming) medicine.anatomical_structure Radiology Information Systems Otorhinolaryngology Female Original Article sense organs Tomography X-Ray Computed Orbit vector Mathematics Orbit (anatomy) |
| Zdroj: | Yonsei Medical Journal |
| ISSN: | 1976-2437 |
| Popis: | Purpose There are marked differences in facial skeletal characteristics between Asian and Caucasian. However, ethnic differences in age-related facial skeletal changes have not yet been fully established. The aims of this study were to evaluate age-related changes in Asian midfacial skeletons and to explore ethnic differences in facial skeletal structures with aging between Caucasian and Asian. Materials and methods The study included 108 men (aged 20-79 years) and 115 women (aged 20-81 years). Axial CT images with a gantry tilt angle of 0 were analyzed. We measured three-dimensional (3D) coordinates at each point with a pixel lens cursor in a picture archiving and communication system (PACS), and angles and widths between the points were calculated using 3D vector mathematics. We analyzed angular changes in 4 bony regions, including the glabellar, orbital, maxillary, and pyriform aperture regions, and changes in the orbital aperture width (distance from the posterior lacrimal crest to the frontozygomatic suture) and the pyriform width (between both upper margins of the pyriform aperture). Results All 4 midfacial angles in females and glabellar and maxillary angles in males showed statistically significant decreases with aging. On the other hand, the orbital and pyriform widths did not show statistically significant changes with aging. Conclusion The results of this study suggest that Asian midfacial skeletons may change continuously throughout life, and that there may be significant differences in the midfacial skeleton between both sexes and between ethnic groups. |
| Databáze: | OpenAIRE |
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