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http://dx.doi.org/10.7742/jksr.2011.5.6.369

A Study on the Appropriate Reconstruction of the CBCT Images of Mandibular Canals  

Jeong, Cheon-Soo (Yedamdental Hospital)
Mo, Eun-Hee (Department of Radiation Science & Technology, Chonbuk University)
Lee, Gee-Heun (Department of Radiation Science & Technology, Chonbuk University)
Han, Beom-Hee (Department of Radiological Science, Seonam University)
Kim, Seung-Chul (Department of Radiological Science, Songho College)
Kim, Jung-Sam (Department of Radiological Science, Mokpo science University)
Lim, Cheong-Hwan (Department of Radiological Science, Hanseo University)
Publication Information
Journal of the Korean Society of Radiology / v.5, no.6, 2011 , pp. 369-375 More about this Journal
Abstract
In dental radiography, panoramic views cause distortion and thus may bring about inaccurate results in the process of quantitative analysis. In this connection, there has recently been an increasing use of cone beam computed tomography (CBCT) that is known to provide high-resolution images and positional information. In this study, a dental computed tomography unit, 'DCT-90-P IMPLAGRAPHY (Vatech, Korea)', was applied to 20 patients for 24 seconds respectively, with a tube voltage of 85kVp and a tube current of 7mA. The data of CBCT were three-dimensionally reconstructed by use of a computer program, and were histomorphometrically analyzed. The results showed that the diameter of mandibular canal is less distorted at a certain inclination of the mandibular body. The image tends to seem more distended in proportion to the distance between the subject and film. Also, the image tends to be affected according as it is out of focus. In conclusion, it requires that the image should be reconstructed in light of anatomic position and structure.
Keywords
dental radiation; panorama; CBCT;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 권대철․동경래․정재은․ 외., "파노라마 촬영의 피폭선량에 관한 문헌분석 연구", 방사선기술과학, Vol. 33, No. 1, pp.1-2, 2010.
2 선민규․엄기수․조진형․황현식, "3차원 콘빔CT영상에 형성한 2차원 정모두부방사선사진영상의 정확도 증진을 위한 두부자세재현기의 효과, Korean J Orthod, Vol. 39, pp.289-299, 2009.   DOI   ScienceOn
3 De Vos W, Casselman J, Swennen GR, "Cone-beam computerized tomography(CBCT) imaging of the oral and maxillofacial region: a sdystematic review of the literature, Int J Oral Maxillofac Surg, Vol. 38, pp.609-625, 2009.   DOI   ScienceOn
4 한우리, "치과용 콘빔 CT 영상에서 측정한 이공관의 위치", 석사학위논문, pp.9-10, 2009.
5 Choi YS, Hwang HE, Lss SR, "Clinical application of cone beam computed tomography in dental implant", J Korean Dent Assoc, Vol. 44, pp.172-179, 2006.
6 Pinsky HM, Dydal S, Pinsky RW, Misch KA, Sarment DP, "Accuracy of three-dimensional measurements using cone-beam CT, Dentomaxillofac Radiol, Vol. 35, pp.410-416, 2006.   DOI   ScienceOn
7 최영석, 김규태, 황의환, "Cone beam형 전산화단층영상의 원리", 대한구강악안면방사선학회지, Vol. 36, pp.128, 2006.
8 Baba R, Ueda K, Okabe M, "Using a flat-panel detector in high resolution cone beam CT for dental imaging, Dentomaxillofac Radiol, Vol. 33, pp.285-290, 2004.   DOI   ScienceOn
9 Crawford CR, King KF, "Computed tomography scanning with simultaneous patient translation". Med Phys, Vol. 17, pp.967-982, 1990.   DOI   ScienceOn
10 Kalender WA, Polacin A, "Physical performance characteristics of spiral CT scanning", Med Phys, Vol. 18, pp.910-915, 1991.   DOI   ScienceOn
11 Hu H, "Multi slice helical CT : Scan and reconstruction", Med Phys, Vol. 26, pp.5-18, 1999.   DOI   ScienceOn
12 신윤자, "Cone beam 전산화단층촬영을 이용한 하악 이공의 형태계측학적 연구", 석사학위논문, pp.14-15, 2010.
13 허성수, "하악골 비대칭 평가를 위한 CBCT-재구성 파노라마 영상의 응용", 석사학위논문, pp.20-21, 2010.
14 Kambylafkas P, Murdock E, Gilda E, Tallents RH, Kyrkanides S, "Validity of panoramic radiographs for measuring mandibular asymmetry", Angle Orthod, Vol. 76, pp.388-393, 2006.
15 Farman AG, "ALARA still applies", Oral Surg Oral Med Oral Pathol Oral Radiol Endod, Vol. 100, pp.395-397, 2005.   DOI   ScienceOn