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Development of the helmet-neck PET prototype: comparison with the helmet-chin PET
https://repo.qst.go.jp/records/66509
https://repo.qst.go.jp/records/665097926e63a-662b-4fe0-88bf-2aa00356f6ef
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-09-14 | |||||
| タイトル | ||||||
| タイトル | Development of the helmet-neck PET prototype: comparison with the helmet-chin PET | |||||
| 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 |
田島, 英朗
× 田島, 英朗× 吉田, 英治× 岩男, 悠真× 脇坂, 秀克× 前田, 貴雅× 高堂, 裕平× 関, 千江× 樋口, 真人× 須原, 哲也× 山下, 大地× 山谷, 泰賀× Tashima, Hideaki× Yoshida, Eiji× Iwao, Yuma× Wakizaka, Hidekatsu× Maeda, Takamasa× Takado, Yuhei× Seki, Chie× Higuchi, Makoto× Suhara, Tetsuya× Yamashita, Taichi× Yamaya, Taiga |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We are developing the helmet PET in which detectors are arranged on a hemisphere with an add-on detector for high sensitivity brain imaging. We have developed the helmet-chin PET prototype having the add-on detector at the chin position to improve the sensitivity. However, the add-on detector at the chin position gave an oppressive feeling to the patient, and the moving part of the add-on detector was not convenient for the patient setup. On the other hand, our previous simulation has shown that the add-on detector covering the neck position has an equivalent effect for improving the sensitivity and imaging quality. In this study, therefore, we developed a helmet-neck PET prototype, which has the add-on detector at the neck position, by remodeling our first helmet-chin PET prototype. The prototype has 54 4-layer depth-of-interaction detectors each of which consists of 16x16x4 array of 2.8×2.8×7.5 mm3 Zr-doped GSO scintillators and a 64-ch position sensitivity photomultiplier tube. We measured sensitivity with a hemispherical pool phantom for the brain region, and we found that the add-on detector at the neck position was more effective for improving the sensitivity for the region than that at the chin position. This was because the arrangement of the detector at the chin position requires a larger margin for designing the gantry, in which the detector position becomes farther away than in the case of the neck position. We conducted a healthy volunteer study using the helmet-neck PET prototype. The result showed that the helmet-neck PET has promising performance for high sensitivity brain imaging and improved convenience for patient studies. | |||||
| 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 | 2017 IEEE Nuclear Science Symposium & Medical Imaging Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2017-10-25 | |||||
| 日付タイプ | Issued | |||||
