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The jPET-D4: Transaxial Imaging Performance of a Novel 4-Layer Depth-of-Interaction PET Scanner
https://repo.qst.go.jp/records/61089
https://repo.qst.go.jp/records/61089caa149f0-d299-4f8a-a357-2f8a55611ffb
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2005-09-30 | |||||
| タイトル | ||||||
| タイトル | The jPET-D4: Transaxial Imaging Performance of a Novel 4-Layer Depth-of-Interaction 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 |
Yamaya, Taiga
× Yamaya, Taiga× et.al× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The jPET-D4 is a high-performance brain PET scanner which achieves not only high spatial resolution but also high scanner sensitivity by discriminating 4-layer depth-of-interaction (DOI) information. The scanner is designed to have 5 rings of 24 detector blocks each, and each detector block consists of 1,024 GSO crystals of 2.9mm x 2.9mm x 7.5mm, which are arranged in 4 layers of 16 x 16 arrays. At this stage, one of the 5 block-detector rings has been assembled into the jPET-D4 gantry. In this paper, we investigate the transaxial imaging performance of the jPET-D4 prototype. In order to reduce computational cost while retaining the advantages of DOI information in iterative image reconstruction, we have proposed the DOI compression (DOIC) method which reduces data dimensions with suppression of resolution loss. This method was applied to treat real data of needle sources on a uniform background. The result shows that almost uniform spatial resolution of 2-3mm is obtained over the field-of-view by using the 4-layer DOI information. | |||||
| 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 | The 4th Japan-Korea Joint Meeting on Medical Physics and The 5th Asia-Oceania Congress of Medical Physics | |||||
| 発表年月日 | ||||||
| 日付 | 2005-10-01 | |||||
| 日付タイプ | Issued | |||||
