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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 37 - 43 (7page)
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초록· 키워드
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Purpose: The purpose of this study was to evaluate the accuracy of linear measurements in the horizontal and vertical dimensions based on object position and slice inclination in cone-beam computed tomography (CBCT) images. Materials and Methods: Ten dry sheep hemi-mandibles, each with 4 sites (incisor, canine, premolar, and molar), were evaluated when either centrally or peripherally positioned within the field of view (FOV) with the image slices subjected to either oblique or orthogonal inclinations. Four types of images were created of each region: central/cross-sectional, central/coronal, peripheral/cross-sectional, and peripheral/coronal. The horizontal and vertical dimensions were measured for each region of each image type. Direct measurements of each region were obtained using a digital caliper in both horizontal and vertical dimensions. CBCT and direct measurements were compared using the Bland-Altman plot method. P values <0.05 were considered to indicate statistical significance. Results: The buccolingual dimension of the incisor and premolar areas and the height of the incisor, canine, and molar areas showed statistically significant differences on the peripheral/coronal images compared to the direct measurements (P<0.05). Molar area height in the central/coronal slices also differed significantly from the direct measurements (P<0.05). Cross-sectional images of either the central or peripheral position had no marked difference from the gold-standard values, indicating sufficient accuracy. Conclusion: Peripheral object positioning within the FOV in combination with applying an orthogonal inclination to the slices resulted in significant inaccuracies in the horizontal and vertical measurements. The most undesirable effect was observed in the molar area and the vertical dimension.
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참고문헌 (20)
참고문헌 신청
Lascala CA / 2004 / Analysis of the accuracy of linear measurements obtained by cone beam computed tomography(CBCT-NewTom) / Dentomaxillofac Radiol 33:291~294
Kosalagood P / 2015 / Linear measurement accuracy of eight cone beam computed tomography scanners / Clin Implant Dent Relat Res 17:1217~1227
Hassan B / 2009 / Accuracy of three-dimensional measurements obtained from cone beam computed tomography surface-rendered images for cephalometric analysis : influence of patient scanning position / Eur J Orthod 31:129~134
Timock AM / 2011 / Accuracy and reliability of buccal bone height and thickness measurements from cone-beam computed tomography imaging / Am J Orthod Dentofacial Orthop 140:734~744
Mah J / 2004 / Three-dimensional craniofacial imaging / Am J Orthod Dentofacial Orthop 126:308~309
Kosalagood P / 2015 / Linear measurement accuracy of eight cone beam computed tomography scanners / Clin Implant Dent Relat Res 17:1217~1227
Hassan B / 2009 / Accuracy of three-dimensional measurements obtained from cone beam computed tomography surface-rendered images for cephalometric analysis : influence of patient scanning position / Eur J Orthod 31:129~134
Timock AM / 2011 / Accuracy and reliability of buccal bone height and thickness measurements from cone-beam computed tomography imaging / Am J Orthod Dentofacial Orthop 140:734~744
Mah J / 2004 / Three-dimensional craniofacial imaging / Am J Orthod Dentofacial Orthop 126:308~309
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