3-dimensional Image Construction Using Multi Axis Multi directional Processing Method for 3DX Multi Image Micro CT

• YAMADA Ayuta

  Graduate School of Nihon University

• TSUNASHIMA Hitoshi

  Department of Mechanical Engineering, College of Industrial Technology, Nihon University

• KANARI Hozumi

  Graduate School of Nihon University

• ARAI Yoshinori

  Department of Oral Radiology, Matsumoto Dental University School of Dentistry, Institute for Dental Science, Matsumoto Dental University School of Dentistry

Bibliographic Information

Other Title

• 多軸多方向補間処理法を用いた３ＤＸ　Ｍｕｌｔｉ　Ｉｍａｇｅ　Ｍｉｃｒｏ　ＣＴにおける三次元画像再構成

Abstract

Object: 3-dimensional diagnostic images can now be reconstructed from CT or MR images. In 2000, a limited cone beam X-ray CT for dental use (3DX Multi Image Micro CT, hereafter referred to as 3DX) was developed by Arai et al. 3DX has the advantages of small X-ray irradiation areas, high resolution, and low exposed doses. However, because there is a lot of noise interference in the 3DX data, the obtained 3-dimensional reconstructed images are inadequate. The aims of this investigation was to inprove the 3-dimensional reconstructed images of 3DX.<br>Method: Firstly, gray level control was employed to reduce the noise on 3-dimensional image data. The amount of gray level correction was selected by comparing the threshold level of 3-dimensional image data with the average level of neighboring voxel. Then, 3-dimensional image data was decomposed to a set of 2-dimensional images from multiple directions. Edge detection, binary processing and line thinning were carried out to detect outlines. Finally, the obtained clear edges of the 2-dimensional image were reconstructed into 3-dimensional images.<br>Result: Adaptive gray level control made it possible to separate the caput mandibulae and fossa mandibularis. By reconstructing 3-dimensional image data from multiple directions, the target image can be interpolated with noise reduction and the edge detection. Our results demonstrate that 3-dimensional reconstructed images which are applicable for dental treatment can be obtained by the proposed method.<br>Conclusion: A 3-dimensional image reconstruction method from 3-dimensional image data obtained by 3DX is proposed. As a result, it became possible to construct improved 3-dimensional reconstructed images from 3DX data. The reconstructed images obtained by the proposed method are widely applicable in dentistry.

Journal

• Shika Hoshasen

  Shika Hoshasen 43 (4), 173-183, 2003

  Japanese Society for Oral and Maxillofacial Radiology

Keywords

• CT
• 3-dimensional image
• Temporomandibular joint

Details

• CRID: 1390282679940100608
• NII Article ID: 10018080113
• NII Book ID: AN00101479
• DOI: 10.11242/dentalradiology1960.43.173
• ISSN: 21856311
• ISSN: 03899705
• Web Site: https://search.jamas.or.jp/link/ui/2004182494
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed