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Feasibility study of a highly sensitive LaBr3 PET scanner based on the DOI-dependent extended-energy window
https://repo.qst.go.jp/records/45549
https://repo.qst.go.jp/records/4554922c7e403-9c32-4fda-b973-27c759c0d274
| アイテムタイプ | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-06-24 | |||||
| タイトル | ||||||
| タイトル | Feasibility study of a highly sensitive LaBr3 PET scanner based on the DOI-dependent extended-energy window | |||||
| 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 |
Yoshida, Eiji
× Yoshida, Eiji× Kitamura, Keishi× Nishikido, Fumihiko× Shibuya, Kengo× Hasegawa, Tomoyuki× Yamaya, Taiga× Inadama, Naoko× Murayama, Hideo× 吉田 英治× 北村 圭司× 錦戸 文彦× 澁谷 憲悟× 長谷川 智之× 山谷 泰賀× 稲玉 直子× 村山 秀雄 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Conventionally, positron emission tomograph (PET) scanners use scintillators which have a high effective atomic number. Recently, novel scintillators like LaBr3 have been developed which have excellent timing and energy resolutions. LaBr3 has a high performance for PET scanner use, but its effective atomic number is lower than that of lutetium oxyorthosilicate (LSO). As an alternative, we have developed a scatter reduction method using depth-of-interaction (DOI) information and energy information to increase the sensitivity. The sensitivity of the PET scanner with LaBr3 can be improved using the DOI-dependent extended-energy window (DEEW) method. In this work, our method is applied to the whole-body LSO/LaBr3 PET scanner using the GATE simulation toolkit. Simulation results show the number of true coincidences can be increased while minimizing the scatter and random coincidences by using the DEEW method. Noise equivalent count rate (NECR) can be improved by 20–70% for the whole-body DOI-PET scanner. Sensitivity of the PET scanner with a scintillator of low-effective atomic number can be improved by the DEEW method. | |||||
| 書誌情報 |
Nuclear Instruments & Methods in Physics Research Section A 巻 604, 号 1/2, p. 363-365, 発行日 2009-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0168-9002 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.nima.2009.01.059 | |||||
