Browse > Article
http://dx.doi.org/10.5624/isd.20210091

Accuracy of virtual 3-dimensional cephalometric images constructed with 2-dimensional cephalograms using the biplanar radiography principle  

Lee, Jae-Seo (Department of Oral and Maxillofacial Radiology, School of Dentistry, Chonnam National University)
Kim, Sang-Rok (Department of Orthodontics, School of Dentistry, Chonnam National University)
Hwang, Hyeon-Shik (Department of Orthodontics, School of Dentistry, Chonnam National University)
Lee, Kyungmin Clara (Department of Orthodontics, School of Dentistry, Chonnam National University)
Publication Information
Imaging Science in Dentistry / v.51, no.4, 2021 , pp. 407-412 More about this Journal
Abstract
Purpose: The purpose of this study was to evaluate the accuracy of virtual 3-dimensional (3D) cephalograms constructed using the principle of biplanar radiography by comparing them with cone-beam computed tomography (CBCT) images. Materials and Methods: Thirty orthodontic patients were enrolled in this study. Frontal and lateral cephalograms were obtained with the use of a head posture aligner and reconstructed into 3D cephalograms using biplanar radiography software. Thirty-four measurements representing the height, width, depth, and oblique distance were computed in 3 dimensions, and compared with the measurements from the 3D images obtained by CBCT, using the paired t-test and Bland-Altman analysis. Results: Comparison of height, width, depth, and oblique measurements showed no statistically significant differences between the measurements obtained from 3D cephalograms and those from CBCT images (P>0.05). Bland-Altman plots also showed high agreement between the 3D cephalograms and CBCT images. Conclusion: Accurate 3D cephalograms can be constructed using the principle of biplanar radiography if frontal and lateral cephalograms can be obtained with a head posture aligner. Three-dimensional cephalograms generated using biplanar radiography can replace CBCT images taken for diagnostic purposes.
Keywords
Dental Digital Radiography; Cone-Beam Computed Tomography; Diagnostic Imaging;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Selvik G. Roentgen stereophotogrammetric analysis. Acta Radiol 1990; 31: 113-26.   DOI
2 Baumrind S, Moffitt FH, Curry S. The geometry of three-dimensional measurement from paired coplanar X-ray images. Am J Orthod 1983; 84: 313-22.   DOI
3 Bookstein FL, Grayson B, Cutting CB, Kim HC, McCarthy JG. Landmarks in three dimensions: reconstruction from cephalograms versus direct observation. Am J Orthod Dentofacial Orthop 1991; 100: 133-40.   DOI
4 Baumrind S, Moffitt FH, Curry S. Three-dimensional X-ray stereometry from paired coplanar images: a progress report. Am J Orthod 1983; 84: 292-312.   DOI
5 Mozzo P, Procacci C, Tacconi A, Martini PT, Andreis IA. A new volumetric CT machine for dental imaging based on the conebeam technique: preliminary results. Eur Radiol 1998; 8: 1558-64.   DOI
6 Cutting C, Bookstein FL, Grayson B, Fellingham L, McCarthy JG. Three-dimensional computer-assisted design of craniofacial surgical procedure: optimization and interaction with cephalometrics and CT-based models. Plast Reconstr Surg 1986; 77: 877-87.   DOI
7 Kusnoto B, Evans CA, BeGole EA, de Rijk W. Assessment of 3-dimensional computer-generated cephalometric measurements. Am J Orthod Dentofacial Orthop 1999; 116: 390-9.   DOI
8 Kumar V, Ludlow JB, Mol A, Cevidanes L. Comparison of conventional and cone beam CT synthesized cephalograms. Dentomaxillofac Radiol 2007; 36: 263-9.   DOI
9 Park HY, Lee JS, Cho JH, Hwang HS, Lee KM. Accuracy of three-dimensional cephalograms generated using a biplanar imaging system. Korean J Orthod 2018; 48: 292-303.   DOI
10 Bland JM, Altman DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986; 1: 307-10.   DOI
11 Selvik G, Alberius P, Fahlman M. Roentgen stereophotogrammetry for analysis of cranial growth. Am J Orthod 1986; 89: 315-25.   DOI
12 Broadbent BH. A new X-ray technique and its application to orthodontia. Angle Orthod 1931; 1: 45-66.
13 Sun MK, Uhm GS, Cho JH, Hwang HS. Use of head posture aligner to improve accuracy of frontal cephalograms generated from cone-beam CT scans. Korean J Orthod 2009; 39: 289-99.   DOI
14 Trocme MC, Sather AH, An KN. A biplanar cephalometric stereoradiography technique. Am J Orthod Dentofacial Orthop 1990; 98: 168-75.   DOI
15 Brown T, Abbott AH. Computer-assisted location of reference points in three dimensions for radiographic cephalometry. Am J Orthod Dentofacial Orthop 1989; 95: 490-8.   DOI
16 Kim EH, Hwang HS. The validity of head posture aligner in posteroanterior cephalometry. Korean J Orthod 2000; 30: 543-52.
17 Arai Y, Tammisalo E, Iwai K, Hashimoto K, Shinoda K. Development of a compact computed tomographic apparatus for dental use. Dentomaxillofac Radiol 1999; 28: 245-8.   DOI
18 Sukovic P. Cone beam computed tomography in craniofacial imaging. Orthod Craniofac Res 2003; 6 Suppl 1: 31-6.   DOI
19 Grayson B, Cutting C, Bookstein FL, Kim H, McCarthy JG. The three-dimensional cephalogram: theory, technique, and clinical application. Am J Orthod Dentofacial Orthop 1988; 94: 327-37.   DOI
20 Hwang HS, Lee KM, Uhm GS, Cho JH, McNamara JA Jr. Use of reference ear plug to improve accuracy of lateral cephalograms generated from cone-beam computed tomography scans. Korean J Orthod 2013; 43: 54-61.   DOI