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Development of second add-on PET/MRI prototype: Evaluation of PET imaging performance
https://repo.qst.go.jp/records/66324
https://repo.qst.go.jp/records/663241012aa39-b377-4f70-980c-4f4542521092
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-05-18 | |||||
| タイトル | ||||||
| タイトル | Development of second add-on PET/MRI prototype: Evaluation of PET imaging performance | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 |
錦戸, 文彦
× 錦戸, 文彦× 藤原, 理伯× 岩男, 悠真× 田島, 英朗× 吉田, 英治× 菅, 幹生× 清水, 啓司× 小畠, 隆行× 山谷, 泰賀× 錦戸 文彦× 藤原 理伯× 岩男 悠真× 田島 英朗× 吉田 英治× 菅 幹生× 小畠 隆行× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | [Purpose] We proposed an add-on PET system integrated with a birdcage RF-coil for PET/MRI system based on 4-layered depth-of-interaction (DOI) detectors. The PET detectors are placed close to a head to achieve both high sensitivity and high spatial resolution even at the edge of the field of view (FOV). We constructed a new RF-coil for a second prototype of add-on PET, which is combined with 24 DOI-PET detectors and evaluated performance. [Methods] The second prototype consisted of an RF-coil and 24 PET detector units with two PET detectors each. The detector units were shielded with carbon fiber shielding boxes. Each PET detector consisted of a 14 x 14 x 4-layer array of lutetium fine silicate (LFS) crystals (1.9 mm x 1.9 mm x 4.0 mm), an 8 x 8 multi-pixel photon counter (MPPC, S12641PA-050) array and a readout circuit board with an ASIC. The RF coil was dedicated to a 3T MRI (MAGNETOM Verio, Siemens). In the evaluation, PET detector performances in simultaneous measurement and spatial resolutions of PET images were measured with a 22Na point-like source and a mini Derenzo phantom. Spin echo (SE) and echo planer imaging (EPI) techniques were used in the evaluation experiment of the simultaneous measurements. [Results] The influence of the simultaneous measurements with MRI on the PET performance was negligible. All of 1.6 mm hot rods were distinguished in the phantom ezperiment. [Conclusion] The influence of the simultaneous measurements with MRI on the PET performance was negligible. In addition, the superior spatial resolution of the PET images was obtained. |
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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 | 第113回医学物理学会学術大会 | |||||
| 発表年月日 | ||||||
| 日付 | 2017-04-13 | |||||
| 日付タイプ | Issued | |||||
