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GPU-accelerated Real-time Imaging System for the OpenPET Toward Tumor-tracking Radiotherapy
https://repo.qst.go.jp/records/71465
https://repo.qst.go.jp/records/71465bfec0c81-adf8-4658-b1e4-e8ac4edc204e
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2014-06-05 | |||||
| タイトル | ||||||
| タイトル | GPU-accelerated Real-time Imaging System for the OpenPET Toward Tumor-tracking Radiotherapy | |||||
| 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× 品地, 哲弥× Futada, Haruhiko× Nagata, Takeshi× 羽石, 秀昭× 山谷, 泰賀× 田島 英朗× 吉田 英治× 品地 哲弥× 羽石 秀昭× 山谷 泰賀 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We are developing the OpenPET, which can provide an open space observable and accessible to the patient during positron emission tomography (PET) measurement. As one possible application of the OpenPET, we are aiming at tumor tracking by means of PET. The PET imaging normally takes several minutes for data acquisition, data transferring, image reconstruction, and displaying the image. On the other hand, our goal is to perform acquisition through displaying in less than a second. In this study, we proposed a real-time imaging system for the OpenPET and implemented on a small OpenPET prototype. In the proposed system, real-time reconstruction system was implemented on graphics processing unit (GPU) by the use of compute unified device architecture (CUDA). The one-pass 3D list-mode dynamic row-action maximum likelihood algorithm (LM-DRAMA) was employed for the reconstruction algorithm. In the real-time imaging system, the data transfer control system limits the event counts to be used in the reconstruction step and the reconstructed images are properly intensified by using the ratio of the used counts to the total counts. The prototype system showed that the real-time monitoring of a moving radioactive source with a frame rate of 2.0 frames per second and a delay of 2.1 s. | |||||
| 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 | 19th real-time conference | |||||
| 発表年月日 | ||||||
| 日付 | 2014-05-30 | |||||
| 日付タイプ | Issued | |||||
