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OpenPET prototypes for a proof of 3D in-situ imaging of a irradiation field in carbon ion therapy
https://repo.qst.go.jp/records/71044
https://repo.qst.go.jp/records/71044b877ec18-88e2-4ef8-84fd-015b53529527
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-02-12 | |||||
| タイトル | ||||||
| タイトル | OpenPET prototypes for a proof of 3D in-situ imaging of a irradiation field in carbon ion therapy | |||||
| 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× Yoshida, Eiji× Inadama, Naoko× Nishikido, Fumihiko× Tashima, Hideaki× Hirano, Yoshiyuki× Inaniwa, Taku× 山谷 泰賀× 吉田 英治× 稲玉 直子× 錦戸 文彦× 田島 英朗× 平野 祥之× 稲庭 拓 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 1) Introduction The OpenPET geometry is our original idea to visualize a physically opened space even with a full ring geometry. One of our targets is in-beam PET, which is a method for in situ monitoring of charged particle therapy, as well as PET-IGRT. We have proposed two geometries, a dual-ring OpenPET (DROP) and a single-ring OpenPET (SROP). In this paper, we developed small prototypes, and we evaluated their in-beam imaging performance. 2) Methods The DROP was our initial idea for the OpenPET, which had a physically opened field-of-view (FOV) between two detector rings separated by a gap. For a dedicated in-beam PET scanner, the DROP was a good candidate, but it was not necessarily the most efficient geometry because it had a wide FOV (i.e., a gap FOV plus two in-ring FOVs) while only a limited FOV around the irradiation field is required in actual use of in-beam PET. Therefore, we proposed the SROP as the second generation OpenPET geometry; the detector ring was the cylinder both ends of which were cut by parallel aslant planes. We developed small prototypes for the DROP and the SROP, which consisted of 16 and 32 depth-of-interaction detectors, respectively. 3) Results We carried out in-beam, phantom imaging tests in the HIMAC using a C-11 beam and a C-10 beam as well as a conventional C-12 beam. For both geometries, 3D distribution of primary particles was clearly imaged from only in-beam measurement data for the radioactive beams (C-11 and C-10). For the C-12 beam, a peak generated through auto-activation was visualized with additional off-beam PET measurements. 4) Conclusion Our initial imaging studies showed promising performance of the OpenPET geometries. |
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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 | Third International Conference on Real-time Tumor-tracking Radiation Therapy with 4D Molecular Imaging Technique | |||||
| 発表年月日 | ||||||
| 日付 | 2013-02-08 | |||||
| 日付タイプ | Issued | |||||
