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Impact of the X'tal cube detector with isotropic resolution on imaging resolution
https://repo.qst.go.jp/records/64643
https://repo.qst.go.jp/records/64643d56caeff-2bea-459b-8deb-8a82887251ea
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-06-28 | |||||
| タイトル | ||||||
| タイトル | Impact of the X'tal cube detector with isotropic resolution on imaging resolution | |||||
| 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× Hirano, Yoshiyuki× Tashima, Hideaki× Watanabe, Mitsuo× Nishikido, Fumihiko× Murayama, Hideo× Inadama, Naoko× Yamaya, Taiga× 吉田 英治× 平野 祥之× 田島 英朗× 錦戸 文彦× 村山 秀雄× 稲玉 直子× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Objective: The X'tal cube is our new PET detector, which is being developed to achieve isotropic 3D positioning detectability. The X'tal cube is based on a segmented 3D crystal block for which all surfaces are covered with photo-detectors. We have shown that the X'tal cube can achieve isotropic intrinsic resolution with the Anger-type calculation even at the block edges. In this work, we developed a new one pair prototype system to simulate a ring-type scanner, and evaluated imaging performance of the X'tal cube detector. Methods: The developed system consisted of two X'tal cube detectors, two rotating stages, and a 192-channel data acquisition system. The X'tal cube consisted of the LYSO cubic crystal block of (18 mm)3 in which the 3D grids of 2 mm pitch were fabricated by the internal laser processing. 4 x 4 arrays of multi pixel photon counters (MPPCs) were optically coupled to each surface of the crystal block. The detector positions were automatically controlled to simulate a ring-type PET of 14.6 cm in diameter. Data were collected for assumed all detector positions and then a sinogram was obtained. The data were reconstructed using the filtered backprojection. Results: We successfully obtained uniform spatial resolution less than 2 mm over the FOV. Conclusion: We developed one pair prototype system for the X'tal cube detector, and we confirmed its potential for high-resolution imaging |
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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 | SNM2012 Annual Meeting | |||||
| 発表年月日 | ||||||
| 日付 | 2012-06-13 | |||||
| 日付タイプ | Issued | |||||
