Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography
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- 作者：Toshihiko Amemiya (1)
Hisaya Yamada (1)
Shoji Kawashima (2)
Kunihiko Sawada (2)
Kenichiro Ejima (2)
Kunihito Matsumoto (2)
Yoshinori Arai (3)
Kazuya Honda (2) - 关键词：Micro ; computed tomography ; Motion artifact ; In vivo ; Bone imaging
- 刊名：Oral Radiology
- 出版年：2015
- 出版时间：January 2015
- 年：2015
- 卷：31
- 期：1
- 页码：59-64
- 全文大小：1,000 KB
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Hisaya Yamada (1)
Shoji Kawashima (2)
Kunihiko Sawada (2)
Kenichiro Ejima (2)
Kunihito Matsumoto (2)
Yoshinori Arai (3)
Kazuya Honda (2)
1. Nihon University Graduate School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
2. Department of Oral and Maxillofacial Radiology, Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
3. Nihon University School of Dentistry, 1-8-13 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan - ISSN：1613-9674
文摘
Objectives This study developed software for the reduction of moving artifacts caused by breathing in rats by means of teeth tracking when CT images were taken using in vivo micro-computed tomography (micro-CT). Methods Raw projection data from the CT of teeth in rats were chosen retrospectively, and then correlated with moving artifacts caused by breathing. An m-mode image was reconstructed from the projection data and used to calculate motion as a function of position. The projection data were corrected and the CT images were reconstructed using the corrected projection data. Results The reconstructed CT images were sharper than the original CT images. There was fog in the periodontal ligament space in the original images because of motion artifacts. The images were clearer after processing. Conclusions The artifacts caused by breathing in in vivo micro-CT images of rat teeth were reduced using this software.