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Development of a prototype system of a small bore DOI-PET Scanner
https://repo.qst.go.jp/records/69543
https://repo.qst.go.jp/records/69543a3b3a785-9037-48fc-9005-c5c8c2bb75b6
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-10-28 | |||||
| タイトル | ||||||
| タイトル | Development of a prototype system of a small bore DOI-PET Scanner | |||||
| 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_c94f | |||||
| 資源タイプ | conference object | |||||
| 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 |
Nishikido, Fumihiko
× Nishikido, Fumihiko× Yoshida, Eiji× Yamaya, Taiga× Inadama, Naoko× Shibuya, Kengo× Tsuda, Tomoaki× Tonami, Hiromichi× Kitamura, Keishi× Murayama, Hideo× 錦戸 文彦× 吉田 英治× 山谷 泰賀× 稲玉 直子× 澁谷 憲悟× 津田 倫明× 北村 圭司× 村山 秀雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Small animal positron emission tomography (PET) scanners and positron emission mammography (PEM) scanner require not only high spatial resolution but also high scanner sensitivity. One of methods to achieve high scanner sensitivity is to move gamma ray detectors closer to objects. However it increases the gamma rays entering to the detector obliquely. Therefore, spatial resolution of reconstructed images is degraded. The solution of the degradation is using depth-of-interaction (DOI) detectors which can measure interaction positions of depth directions in scintillation crystals. We are developing a small bore PET scanner to achieve high sensitivity as well as high spatial resolution by the use of four-layer DOI information of the detector. We constructed and tested the prototype scanner of the four-layer DOI detectors. The prototype system consists of the six DOI detectors arranged hexagonally. The distance between the opposed DOI detectors is 9.2 cm and a field-of-view (FOV) is 8.8 cm. The DOI detectors consist of a 32 (transaxial) x 32 (axial) x 4 (depth) array of LGSO crystals and a 256ch FP-PMT. The size of each crystal element is 1.46 mm x 1.46 mm x 4.5 mm. In the presentation, the experimental data, especially the evaluation of the spatial resolution and sensitivity of the scanner, are presented. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 2008 Nuclear Science Symposium, Medical Imaging Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2008-10-25 | |||||
| 日付タイプ | Issued | |||||
