전산화단층사진을 이용한 하악골 3차원 영상에서 비대칭진단 계측항목의 재현도에 관한 연구
Reproducibility of asymmetry measurements of the mandible in three-dimensional CT imaging
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본 연구는 하악골 3차원 입체영상에서 비대칭계측항목들의 재현도 비교를 통하여 안면비대칭 진단 시 유용한 계측점 설정에 도움이 되고자 시행되었다. 40명의 두경부 전산화단층사진을 이용하여 생성한 3차원 영상에서 하악골 형태를 결정짓는 부위로 하악과두, 하악우각부, 하악정중부를 선택하고 각 부위의 세부위치에 따라, 그리고 측정 시 보는 각도에 따라 구분하여 하악과두의 경우 Cdsup_sup 등 6개, 하악우각부의 경우 Goinf_lat 등 10개, 하악정중부의 경우 Me_ant, Me_inf 등 총 18개의 계측점을 설정한 후 이를 이용하여 하악골 비대칭 시 좌우 차이를 보일 수 있는 25개의 계측항목을 설정 및 계측한 후 조사자간 및 조사자내의 재현도를 비교 평가하였다. 조사자간 재현도의 경우 25개의 계측항목 중 3개를 제외한 모든 계측항목에서, 조사자내 재현도의 경우 2개 항목을 제외한 모든 계측항목에서 높은 재현도를 보였다. 아울러 본 연구에서 설정한 18개의 계측점 중 Gomid_lat, Gomid_obl가 포함된 계측항목이 조사자간 및 조사자내 재현도가 떨어지는 경향을 보였다. 이상의 연구 결과 본 연구에서 사용된 18개의 계측점 중 16개의 계측점 (과두를 나타내는 Cdsup_sup, Cdlat_ant, Cdlat_lat, Cdpost_lat, Cdpost_post, S, 하악우각부를 나타내는 Goinf_lat, Goinf_inf, Golat_ant, Golat_lat, Gopost_lat, Gopost_post, Ag_lat, Ag_inf, 하악정중부를 나타내는 Me_ant, Me_inf)은 높은 재현도를 보이므로 전산화단층사진을 이용한 하악골 3차원 영상에서 안면비대칭 환자의 진단에 유용하게 사용될 수 있음을 시사하였다. (대치교정지 2008;38(5):314-327)
Abstract
Objective: The purpose of this study was to evaluate the reproducibility of measurements representing asymmetry of the mandible and to identify which landmarks would be more useful in 3-dimensional (3D) CT imaging. Methods: Facial CT images were obtained from forty normal occlusion individuals. Eighteen landmarks were established from the condyle, gonion, and menton areas, and 25 measurements were constructed to represent asymmetry of the mandible; 8 for ramus length, 12 for mandibular body length, 1 for condylar neck length, 2 for frontal ramal inclination, and 2 for lateral ramal inclination. Inter- and intra-examiner reproducibility of the measurements was evaluated. Results: Inter-examiner reproducibility of the measurements proved to be high except for 3 measurements. Intra-examiner reproducibility also proved to be high except for 2 measurements. Inter- and intra-examiner reproducibility of the measurements including Gonion proved to be low. Conclusions: The results of the present study indicate that the landmarks and measurements constructed in 3D CT images can be used for the diagnosis of facial asymmetry. (Korean J Orthod 2008;38(5):314-327)
참고문헌 (39)
- Ahn JS, "Relationship between perception of facial asymmetry and posteroanterior cephalometric measurements", Korean J Orthod, 31, pp.489~498 (2001)
- Shah SM, "An assessment of asymmetry in the normal craniofacial complex", Angle Orthod, 48, pp.141~148 (1978)
- Peck S, "Skeletal asymmetry in esthetically pleasing faces", Angle Orthod, 61, pp.43~48 (1991)
- Broadbent BH, "A new x-ray technique and its application to orthodontia", Angle Orthod, 1, pp.45~66 (1931)
- Vogel CJ, "Correction of frontal dimensions from head x-rays", Angle Orthod, 37, pp.1~8 (1967)
- Jarvinen S, "A study of the factors causing differences in the relative variability of linear radiographic cephalometric measurements", Am J Orthod Dentofacial Orthop, 92, pp.17~23 (1987)
- Hatcher DC, "Maxillofacial imaging. In: McNeill C, editor. Science and Practice of Occlusion", pp.349~364 (1997), Quintessence Publishing
- Legrell PE, "Validity of identification of gonion and antegonion in frontal cephalograms", Angle Orthod, 70, pp.157~164 (2000)
- Berger H, "Progress with basilar view cephalograms", Trans Eur Orthod Soc, 40, pp.159~164 (1964)
- Grayson B, "The three-dimensional cephalogram: theory, technique, and clinical application", Am J Orthod Dentofacial Orthop, 94, pp.327~337 (1988)
- Baumrind S, "Three-dimensional x-ray stereometry from paired coplanar images: a progress report", Am J Orthod, 84, pp.292~312 (1983)
- Baumrind S, "The geometry of three-dimensional measurement from paired coplanar x-ray images", Am J Orthod, 84, pp.313~322 (1983)
- Bookstein FL, "Landmarks in three dimensions: reconstruction from cephalograms versus direct observation", Am J Orthod Dentofacial Orthop, 100, pp.133~140 (1991)
- Kusnoto B, "Assessment of 3-dimensional computer-generated cephalometric measurements", Am J Orthod Dentofacial Orthop, 116, pp.390~399 (1999)
- Koh EH, "Effects of vertical head rotation on the posteroanterior cephalometric measurements", Korean J Orthod, 33, pp.73~84 (2003)
- Vannier MW, "Three dimensional CT reconstruction images for craniofacial surgical planning and evaluation", Radiology, 150, pp.179~184 (1984)
- Dawood R, "Digital radiology-a realistic prospect?", Clin Radiol, 42, pp.6~11 (1990)
- Lill W, "Reproducibility of three-dimensional CT-assisted model production in the maxillofacial area", Br J Oral Maxillofac Surg, 30, pp.233~236 (1992)
- Altobelli DE, "Computer-assisted three-dimensional planning in craniofacial surgery", Plast Reconstr Surg, 92, pp.576~585 (1993)
- Fuhrmann RA, "Treatment prediction with three-dimensional computer tomographic skull models", Am J Orthod Dentofacial Orthop, 106, pp.156~160 (1994)
- Darling CF, "Three-dimensional computed tomography imaging in the evaluation of craniofacial abnormalities", J Natl Med Assoc, 86, pp.676~680 (1994)
- Fuhrmann RA, "Three-dimensional imaging of craniomaxillofacial structures with a standard personal computer", Dentomaxillofac Radiol, 24, pp.260~263 (1995)
- Fuhrmann R, "Integration of three-dimensional cephalometry and 3D-skull models in combined orthodontic", surgical treatment planning, 1996, pp.57, 32~45
- Vannier MW, "Three-dimensional dental imaging by spiral CT", A progress report. Oral Surg Oral Med Pathol Oral Radiol Endod, 84, pp.561~570 (1997)
- Preda L, "Use of spiral computed tomography for multiplanar dental reconstruction", Dentomaxillofac Radiol, 26, pp.327~331 (1997)
- Cavalcanti MG, "Quantitative analysis of spiral computed tomography for craniofacial clinical applications", Dentomaxillofac Radiol, 27, pp.344~350 (1998)
- Quintero JC, "Craniofacial imaging in orthodontics: historical perspective, current status, and future developments", Angle Orthod, 69, pp.491~506 (1999)
- Chang HS, "A proposal of landmarks for craniofacial analysis using three-dimensional CT imaging", Korean J Orthod, 32, pp.313~325 (2002)
- Hidelbolt CF, "Three-dimensional measurement accuracy of skull surface landmarks", Am J Phys Anthropol, 76, pp.497~503 (1988)
- Hidelbolt CF, "study of skull three-dimensional computerized tomography measurements", Am J Phys Anthropol, 82, pp.283~294 (1990)
- Williams FL, "Comparison of mandibular landmarks from computed tomography and 3D digitizer data", Clin Anat, 16, pp.494~500 (2003)
- Kragskov J, "Comparison of the reliability of craniofacial anatomic landmarks based on cephalometric radiographs and three-dimensional CT scans", Cleft Palate Craniofac J, 34, pp.111~116 (1997)
- Xia J, "Computer-assisted three-dimensional surgical planning and simulation: 3D color facial model generation", Int J Oral Maxillofac Surg, 29, pp.2~10 (2000)
- Edler R, "Comparison of radiographic and photographic measurement of mandibular asymmetry", Am J Orthod Dentofacial Orthop, 123, pp.167~174 (2003)
- Graber TM, "New horizons in case analysis-clinical cephalometrics", Am J Orthod, 38, pp.603~624 (1952)
- Ricketts RM, "Provocations and perceptions in cranio-facial orthopedics", pp.797~803 (1989), Rocky Mountain
- Sassouni V, "Orthodontics in dental practice", pp.330~337 (1971), Mosby
- Gugino CF, "Rocky Mountain", pp.1~2 (1977), 1977
- Peck H, "A concept of facial esthetics", Angle Orthod, 40, pp.284~ (1970)