オガワ タクミ   Ogawa Takumi
  小川 匠
   所属   鶴見大学  歯学部 歯学科 クラウンブリッジ補綴学
   鶴見大学  歯学部 歯学科 歯科医学教育学
   職種   教授
論文種別 【査読あり】 研究論文(学術雑誌)
言語種別 英語
査読の有無 査読あり
表題 "High-precision, reconstructed 3D model"of skull scanned by conebeam CT: Reproducibility verified using CAD/CAM data
掲載誌名 正式名:LEGAL MEDICINE
ISSNコード:13446223
出版社 ELSEVIER IRELAND LTD
巻・号・頁 18,pp.37-43
著者・共著者 Seiko Katsumura,Keita Sato,Tomoko Ikawa,Keiko Yamamura,Eriko Ando,Yuko Shigeta,Takumi Ogawa
発行年月 2016/01
概要 Computed tomography (CT) scanning has recently been introduced into forensic medicine and dentistry. However, the presence of metal restorations in the dentition can adversely affect the quality of three-dimensional reconstruction from CT scans. In this study, we aimed to evaluate the reproducibility of a"high-precision, reconstructed 3D model"obtained from a conebeam CT scan of dentition, a method that might be particularly helpful in forensic medicine.We took conebeam CT and helical CT images of three dry skulls marked with 47 measuring points; reconstructed three-dimensional images; and measured the distances between the points in the 3D images with a computer-aided design/computer-aided manufacturing (CAD/CAM) marker. We found that in comparison with the helical CT, conebeam CT is capable of reproducing measurements closer to those obtained from the actual samples.In conclusion, our study indicated that the image-reproduction from a conebeam CT scan was more accurate than that from a helical CT scan. Furthermore, the"high-precision reconstructed 3D model"facilitates reliable visualization of full-sized oral and maxillofacial regions in both helical and conebeam CT scans.
DOI 10.1016/j.legalmed.2015.11.007
PMID 26832374