Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography

Toshihiko Amemiya; Hisaya Yamada; Shoji Kawashima; Kunihiko Sawada; Kenichiro Ejima; Kunihito Matsumoto; Yoshinori Arai; Kazuya Honda

doi:10.1007/s11282-014-0172-6

Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography

Toshihiko Amemiya, Hisaya Yamada, Shoji Kawashima, Kunihiko Sawada, Kenichiro Ejima, Kunihito Matsumoto, Yoshinori Arai, Kazuya Honda

School of Dentistry

Nihon University

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	59-64
Number of pages	6
Journal	Oral Radiology
Volume	31
Issue number	1
DOIs	https://doi.org/10.1007/s11282-014-0172-6
Publication status	Published - Jan 2015

Keywords

Bone imaging
In vivo
Micro-computed tomography
Motion artifact

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10.1007/s11282-014-0172-6

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title = "Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography",

abstract = "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.",

keywords = "Bone imaging, In vivo, Micro-computed tomography, Motion artifact",

author = "Toshihiko Amemiya and Hisaya Yamada and Shoji Kawashima and Kunihiko Sawada and Kenichiro Ejima and Kunihito Matsumoto and Yoshinori Arai and Kazuya Honda",

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doi = "10.1007/s11282-014-0172-6",

language = "English",

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T1 - Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography

AU - Amemiya, Toshihiko

AU - Yamada, Hisaya

AU - Kawashima, Shoji

AU - Sawada, Kunihiko

AU - Ejima, Kenichiro

AU - Matsumoto, Kunihito

AU - Arai, Yoshinori

AU - Honda, Kazuya

PY - 2015/1

Y1 - 2015/1

N2 - 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.

AB - 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.

KW - Bone imaging

KW - In vivo

KW - Micro-computed tomography

KW - Motion artifact

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SP - 59

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JO - Oral Radiology

JF - Oral Radiology

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Reduction of moving artifacts caused by breathing in rats for in vivo micro-computed tomography

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Keywords

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