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논문 기본 정보

자료유형
학술저널
저자정보
Oh, Song Hee (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Kang, Ju Hee (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Seo, Yu-Kyeong (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Lee, Sae Rom (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Choi, Hwa-Young (Department of Dental Hygiene, College of Health, Kyungwoon University) Choi, Yong-Suk (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University) Hwang, Eui-Hwan (Department of Oral and Maxillofacial Radiology, Graduate School, Kyung Hee University)
저널정보
대한영상치의학회 Imaging science in dentistry Imaging science in dentistry 제48권 제2호
발행연도
2018.1
수록면
111 - 119 (9page)

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초록· 키워드

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Purpose: This study was conducted to evaluate the accuracy of linear measurements of 3-dimensional (3D) images generated by cone-beam computed tomography (CBCT) and facial scanning systems, and to assess the effect of scanning parameters, such as CBCT exposure settings, on image quality. Materials and Methods: CBCT and facial scanning images of an anthropomorphic phantom showing 13 soft-tissue anatomical landmarks were used in the study. The distances between the anatomical landmarks on the phantom were measured to obtain a reference for evaluating the accuracy of the 3D facial soft-tissue images. The distances between the 3D image landmarks were measured using a 3D distance measurement tool. The effect of scanning parameters on CBCT image quality was evaluated by visually comparing images acquired under different exposure conditions, but at a constant threshold. Results: Comparison of the repeated direct phantom and image-based measurements revealed good reproducibility. There were no significant differences between the direct phantom and image-based measurements of the CBCT surface volume-rendered images. Five of the 15 measurements of the 3D facial scans were found to be significantly different from their corresponding direct phantom measurements(P<.05). The quality of the CBCT surface volume-rendered images acquired at a constant threshold varied across different exposure conditions. Conclusion: These results proved that existing 3D imaging techniques were satisfactorily accurate for clinical applications, and that optimizing the variables that affected image quality, such as the exposure parameters, was critical for image acquisition.
#Imaging #Three-Dimensional #Dimensional Measurement Accuracy #Anthropometry #Cone-beam computed tomography

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참고문헌 (22)

참고문헌 신청
Swennen GR / 2009 / Three-dimensional treatment planning of orthognathic surgery in the era of virtual imaging / J Oral Maxillfac Surg 67:2080~2092 Crossref McNamara JA Jr / 1984 / A method of cephalometric evaluation / Am J Orthod 86:449~469 Crossref Kau CH / 2007 / Threedimensional surface acquisition systems for the study of facial morphology and their application to maxillofacial surgery / Int J Med Robot 3:97~110 Crossref Swennen GR / 2006 / Three-dimensional cephalometry: spiral multi-slice vs cone-beam computed tomography / Am J Orthod Dentofacial Orthop 130:410~416 Crossref Silva MA / 2008 / Cone-beam computed tomography for routine orthodontic treatment planning: a radiation dose evaluation / Am J Orthod Dentofacial Orthop 133:640 google schola

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