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Development of a small single-ring OpenPET prototype with a novel transformable architecture
https://repo.qst.go.jp/records/47399
https://repo.qst.go.jp/records/473990fda1983-21fa-481f-9c55-06968ba90f52
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-05-18 | |||||
| タイトル | ||||||
| タイトル | Development of a small single-ring OpenPET prototype with a novel transformable architecture | |||||
| 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 |
Tashima, Hideaki
× Tashima, Hideaki× Yoshida, Eiji× Inadama, Naoko× Nishikido, Fumihiko× Nakajima, Yasunori× Wakizaka, Hidekatsu× Shinaji, Tetsuya× Nitta, Munetaka× Kinouchi, Shoko× Suga, Mikio× Haneishi, Hideaki× Inaniwa, Taku× Yamaya, Taiga× 田島 英朗× 吉田 英治× 稲玉 直子× 錦戸 文彦× 中島 靖紀× 脇坂 秀克× 品地 哲弥× 新田 宗孝× 木内 尚子× 菅 幹生× 羽石 秀昭× 稲庭 拓× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The single-ring OpenPET (SROP), for which the detector arrangement has a cylinder shape cut by two parallel planes at a slant angle to form an open space, is our original proposal for in-beam PET. In this study, we developed a small prototype of an axial-shift type SROP (AS-SROP) with a novel transformable architecture for a proof-of-concept. In the AS-SROP, detectors originally forming a cylindrical PET are axially shifted little by little. We designed the small AS-SROP prototype for 4-layer depth-of-interaction detectors arranged in a ring diameter of 250 mm. The prototype had two modes: open and closed. The open mode formed the SROP with the open space of 139 mm and the closed mode formed a conventional cylindrical PET. The detectors were simultaneously moved by a rotation handle allowing them to be transformed between the two modes. We evaluated the basic performance of the developed prototype and carried out in-beam imaging tests in the HIMAC using 11C radioactive beam irradiation. As a result, we found the open mode enabled in-beam PET imaging at a slight cost of imaging performance; the spatial resolution and sensitivity were 2.6 mm and 5.1% for the open mode and 2.1 mm and 7.3% for the closed mode. We concluded that the AS-SROP can minimize the decrease of resolution and sensitivity, for example, by transforming into the closed mode immediately after the irradiation while maintaining the open space only for the in-beam PET measurement. | |||||
| 書誌情報 |
Physics in Medicine and Biology 巻 61, 号 4, p. 1795-1809, 発行日 2016-02 |
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| 出版者 | ||||||
| 出版者 | IOP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-9155 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | http://dx.doi.org/10.1088/0031-9155/61/4/1795 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://iopscience.iop.org/article/10.1088/0031-9155/61/4/1795 | |||||
| 関連名称 | http://iopscience.iop.org/article/10.1088/0031-9155/61/4/1795 | |||||
