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The impact of reorienting cone-beam computed tomographic images in varied head positions on the coordinates of anatomical landmarks

Other Titles
 변화된 두부위치의 콘빔전산화단층영상에서 축재정렬이 교정적 계측점 좌표에 미치는 영향 
Authors
 Jae Hun Kim  ;  Ho-Gul Jeong  ;  Jae Joon Hwang  ;  Jung-Hee Lee  ;  Sang-Sun Han 
Citation
 IMAGING SCIENCE IN DENTISTRY, Vol.46(2) : 133-139, 2016 
Journal Title
 IMAGING SCIENCE IN DENTISTRY 
ISSN
 2233-7822 
Issue Date
2016
Keywords
Anatomic Landmarks ; Cone-Beam Computed Tomography ; Orthodontics
Abstract
PURPOSE: The aim of this study was to compare the coordinates of anatomical landmarks on cone-beam computed tomographic (CBCT) images in varied head positions before and after reorientation using image analysis software. MATERIALS AND METHODS: CBCT images were taken in a normal position and four varied head positions using a dry skull marked with 3 points where gutta percha was fixed. In each of the five radiographic images, reference points were set, 20 anatomical landmarks were identified, and each set of coordinates was calculated. Coordinates in the images from the normally positioned head were compared with those in the images obtained from varied head positions using statistical methods. Post-reorientation coordinates calculated using a three-dimensional image analysis program were also compared to the reference coordinates. RESULTS: In the original images, statistically significant differences were found between coordinates in the normal-position and varied-position images. However, post-reorientation, no statistically significant differences were found between coordinates in the normal-position and varied-position images. CONCLUSION: The changes in head position impacted the coordinates of the anatomical landmarks in three-dimensional images. However, reorientation using image analysis software allowed accurate superimposition onto the reference positions.
Files in This Item:
T201603073.pdf Download
DOI
10.5624/isd.2016.46.2.133
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Radiology (영상치의학교실) > 1. Journal Papers
Yonsei Authors
Jeong, Ho Gul(정호걸)
Han, Sang Sun(한상선) ORCID logo https://orcid.org/0000-0003-1775-7862
Hwang, Jae Joon(황재준)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/151919
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