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Volumetric tracking tool using four-dimensional CT for image guided-radiation therapy
https://repo.qst.go.jp/records/45071
https://repo.qst.go.jp/records/45071407e7e62-eb08-4d47-9c63-3dbbd3d970a2
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-01-08 | |||||
| タイトル | ||||||
| タイトル | Volumetric tracking tool using four-dimensional CT for image guided-radiation therapy | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Tanaka, Rie
× Tanaka, Rie× Mori, Shinichiro× Endo, Masahiro× 森 慎一郎× 遠藤 真広 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | To analyze lung vessel motion automatically, we developed computerized tracking software for multi-slice CT (MSCT) data. Here, we evaluated the tracking accuracy in images of healthy porcine lungs obtained by 256 multi-slice CT (256-MSCT). A domestic pig was scanned with 256-MSCT under free breathing conditions. The 256-MSCT provides 128-mm scan coverage with a 0.5-mm slice thickness in a single rotation (1.0 s/rot). Automatic tracking was performed by template matching, where volumes of interest (VOIs) can be identified by mouse click on all three principal orthogonal planes (axial, sagittal and coronal). The results were compared with those obtained by manual tracking. There was no significant difference between the results obtained with the computerized method and those with the manual method. The maximum tracking error was less than 1.4 mm in all directions. The computerized method allowed real-time tracking and significantly saved time in determining target displacement. The present method, 256-MSCT with a computerized tracking system, could quantify hysteresis-like behavior of lung vessels during respiration in 4DCT data. The quantitative information on the target trajectory is expected to be useful for clinical radiotherapy planning and IGRT to the lower lobe of the lung and liver area, which show large respiratory displacement. | |||||
| 書誌情報 |
Radiological Physics and Technology 巻 1, 号 1, p. 38-43, 発行日 2007-11 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1865-0333 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s12194-007-0006-x | |||||
