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Improvement of the accuracy of bone segmentation procedures applied to CBCT images
https://kitami-it.repo.nii.ac.jp/records/7543
https://kitami-it.repo.nii.ac.jp/records/75433452c92a-0279-46d1-9a11-f4e1fe73d530
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Hayakawa_S212-S213_final_CARS2008.pdf (137.3 kB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-03-18 | |||||
| タイトル | ||||||
| タイトル | Improvement of the accuracy of bone segmentation procedures applied to CBCT images | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Bone segmentation | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Cone beam CT | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | 3D filter | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Region growing | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_5794 | |||||
| タイプ | conference paper | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
| その他のタイトル | ||||||
| その他のタイトル | IMAGING AND TREATING TEMPOROMANDIBULAR JOINT CONDITIONS | |||||
| 言語 | en | |||||
| 著者 |
Hayakawa, Y.
× Hayakawa, Y.× Sagawa, M.× Kawaguchi, T.× Miyoseta, Y.× Yamashita, H. |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To improve the accuracy of bone segmentation procedures in dental CBCT images, several two- and three-dimensional (2D & 3D) filtering methods were examined. The comparison with the processing for MDCT images was also done. CBCT images having high and isotropic spatial resolution, but the noise is comparatively high. By reducing the noise in images, the attempt to improve the MPR image quality was carried out. And the 3D region growing method was examined for the volumetric data of CBCT images for the bone segmentation. CBCT and MDCT examinations were taken using CB Throne (Hitachi Medical Systems, Japan) and Somatom Plus 4 (Siemens, Germany), respectively. Principal exposure parameters were as follows; I-mode, 10 cm FOV in diameter, 120 kV, 15 mA, 0.2 mm in slice thickness and 10 s exposure time (CBCT) and 120kV, 130 effective mAs, 0.5 mm slice thickness (MDCT). Two-D and 3D filtering procedures for Gaussian moothing, Laplacian sharpening, etc. were applied for the improvement of MPR images of both CT modalities. Images processed were a clinical case of Mucocele in the maxillary sinus. The 2D and 3D filtering procedures for Gaussian smoothing, Laplacian sharpening worked for the improvement in the different way. In comparison with MDCT images, the difference was not large. The effect of the simple noise reduction filter is seemed to be no changes in bone segmentation in spite of extreme reduced noise. Due to the example which the Sobel filtering, noise-resistant edge-detection filter, was applied as either 2D or 3D local operator, the difference was appeared less significantly in CBCT images than MDCT images. For the imaging of dento-alveolar and maxillary sinus regions, the depiction of thin bone structure with the high accuracy is important. Three-D filtering methods have the possibility to improve the accuracy of bone segmentation in threedimensional displaying of CBCT images. Based on these finding 3D region growing method was examined for 3D visualization. The bone region on CBCT images was extracted using the 3D region growing method. |
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| 言語 | en | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Proceedings of the 22nd International Congress and Exhibition, Barcelona, Spain, June 25-28, 2008 | |||||
| 言語 | en | |||||
| 書誌情報 |
International Journal of Computer Assisted Radiology and Surgery 巻 3, 号 1 Suppl., p. S212-S213, 発行日 2008-06 |
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| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://doi.org/10.1007/s11548-008-0196-7 | |||||
| 著者版フラグ | ||||||
| 言語 | en | |||||
| 値 | author | |||||
| 出版者 | ||||||
| 出版者 | Springer | |||||
