Imaging Science in Dentistry

Korean Academy of Oral and Maxillofacial Radiology (대한영상치의학회)
권호 표지

The elimination of the linear artifacts by the metal restorations in the three dimensional computed tomographic images using the personal computer and software

개인용 컴퓨터와 소프트웨어를 이용한 3차원 전산화단층영상에서의 금속 수복물에 의한 선상 오류의 제거

  • Park Hyok (Department of Oral and maxillofacial radiology, College of Dentistry, Yonsei University) ;
  • Lee Hee-Cheol (Department of Oral and maxillofacial radiology, College of Dentistry, Yonsei University) ;
  • Kim Kee-Deog (Department of Oral and maxillofacial radiology, College of Dentistry, Yonsei University) ;
  • Park Chang-Seo (Department of Oral and maxillofacial radiology, College of Dentistry, Yonsei University)
  • 박혁 (연세대학교 치과대학 구강악안면방사선과학교실) ;
  • 이희철 (연세대학교 치과대학 구강악안면방사선과학교실) ;
  • 김기덕 (연세대학교 치과대학 구강악안면방사선과학교실) ;
  • 박창서 (연세대학교 치과대학 구강악안면방사선과학교실)
  • Published : 2003.09.01
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Abstract

Purpose: The purpose of this study is to evaluate the effectiveness and usefulness of newly developed personal computer-based software to eliminate the linear artifacts by the metal restorations. Materials and Methods: A 3D CT image was conventionally reconstructed using ADVANTAGE WINDOWS 2.0 3D Analysis software (GE Medical System, Milwaukee, USA) and eliminated the linear artifacts manually. Next, a 3D CT image was reconstructed using V-works 4.0/sup TM/(Cybermed Inc., Seoul, Korea) and the linear artifacts eliminated manually in the axial images by a skillful operator using a personal computer. A 3D CT image was reconstructed using V-works 4.0/sup TM/(Cybermed Inc., Seoul, Korea) and the linear artifacts were removed using a simplified algorithm program to eliminate the linear artifacts automatically in the axial images using a personal computer, abbreviating the manual editing procedure. Finally, the automatically edited reconstructed 3D images were compared to the manually edited images. Results and Conclusion: We effectively eliminated the linear artifacts automatically by this algorithm, not by the manual editing procedures, in some degree. But programs based on more complicated and accurate algorithms may lead to a nearly flawless elimination of these linear artifacts automatically.

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