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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/69448
https://repo.qst.go.jp/records/69448066d04ed-793d-486c-9725-db838458fd18
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-09-12 | |||||
| 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_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 |
Yoshida, Eiji
× Yoshida, Eiji× 吉田 英治 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Conventionally, PET scanners are used for scintillators which have high effective atomic number. Recently, novel scintillators like LaBr3 have been developed which have excellent timing and energy resolutions. LaBr3 has high performance for PET scanner use, but its effective atomic number is lower than that of LSO. As another alternative, we developed a scatter reduction method using depth-of-interaction (DOI) information and energy information to obtain high sensitivity. Sensitivity of the PET scanner with LaBr3 can be improved using the DOI-dependent extended-energy window (DEEW). In this work, our method is applied to the whole-body LSO/LaBr3 PET scanner using GATE. Simulation results show the number of true coincidences can be increased while keeping low scatter and low random coincidences by using the DEEW method. 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. | |||||
| 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 | 8th International Conference on Position Sensitive Detectors | |||||
| 発表年月日 | ||||||
| 日付 | 2008-09-05 | |||||
| 日付タイプ | Issued | |||||
