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Imaging simulation of a helmet-PET with a jaw detector
https://repo.qst.go.jp/records/65444
https://repo.qst.go.jp/records/654446957b7b4-66df-4bd5-b1ad-874e8bfb4866
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-04-01 | |||||
| タイトル | ||||||
| タイトル | Imaging simulation of a helmet-PET with a jaw detector | |||||
| 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× 伊藤, 浩× 山谷, 泰賀× 田島 英朗× 伊藤 浩× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The advanced depth-of-interaction positron emission tomography (PET) detectors have been improved to provide three-dimensionally uniform detector resolution. These detectors allow geometries that place the detectors very close to imaging subjects, because they can maintain high spatial resolution even in the peripheral region in the field of view (FOV) without loss of sensitivity. In this study, we are proposing a helmet-PET geometry consisting of a hemispheric-shaped detector and a jaw detector. The key points of the geometry are the closely positioned detectors and the detector covering the jaw. The hemispheric-shaped detector had high sensitivity for the cerebrum region. However, the sensitivity at the center region was low, where the cerebellum positioned during PET measurement. In the proposed geometry, the jaw detector significantly improved the sensitivity at the center region of the geometry. High sensitivity and quantitative accuracy for the cerebellum region are important especially for functional brain imaging because this region may be used as a reference value in kinetic analysis. We conducted imaging simulations for the geometries assuming 3.0 × 3.0 × 3.0 mm3 cubic detector elements arranged as the hemispheric-shaped detector and the jaw detector. Numerical simulations showed the proposed geometry increases image quality especially for the central region. | |||||
| 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 | 3rd NIRS-SNU Workshop on Nuclear Medicine Imaging Science and Technology | |||||
| 発表年月日 | ||||||
| 日付 | 2014-03-28 | |||||
| 日付タイプ | Issued | |||||
