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Crosstalk Reduction Using a Dual Energy Window Scatter Correction in Compton Imaging
https://repo.qst.go.jp/records/79919
https://repo.qst.go.jp/records/799198fae9a34-d045-4bcd-bc3e-f709895ae62f
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-04-23 | |||||
| タイトル | ||||||
| タイトル | Crosstalk Reduction Using a Dual Energy Window Scatter Correction in Compton Imaging | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Sakai, Makoto
× Sakai, Makoto× Kumar Parajuli, Raj× Yoshiki, Kubota (Gunma Univ.)× Nobuteru, Kubo (Gunma Univ.)× Yamaguchi, Mitsutaka× Nagao, Yuto× Kawachi, Naoki× Kikuchi, Mikiko× Arakawa, Kazuo× Mutsumi, Tashiro (Gunma Univ.)× Sakai, Makoto× Parajuli, Raj× Yamaguchi, Mitsutaka× Nagao, Yuuto× Kawachi, Naoki× Kikuchi, Mikiko× Arakawa, Kazuo |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Compton cameras can simultaneously detect multi-isotopes; however, when simultaneous imaging is performed, crosstalk artifacts appear on the images obtained using a low-energy window. In conventional single-photon emission computed tomography, a dual energy window (DEW) subtraction method is used to reduce crosstalk. This study aimed to evaluate the effectiveness of employing the DEW technique to reduce crosstalk artifacts in Compton images obtained using low-energy windows. To this end, in this study, we compared reconstructed images obtained using either a photo-peak window or a scatter window by performing image subtraction based on the differences between the two images. Simulation calculations were performed to obtain the list data for the Compton camera using a 171 keV and a 511 keV point source. In the images reconstructed using these data, crosstalk artifacts were clearly observed in the images obtained using a 171 keV photo-peak energy window. In the images obtained using a scatter window (176–186 keV), only crosstalk artifacts were visible. The DEW method could eliminate the influence of high-energy sources on the images obtained with a photo-peak window, thereby improving quantitative capability. This was also observed when the DEW method was used on experimentally obtained images. | |||||
| 書誌情報 |
Sensors 巻 20, 号 9, p. 2453-1-2453-13, 発行日 2020-04 |
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| 出版者 | ||||||
| 出版者 | MDPI | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1424-8220 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3390/s20092453 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.mdpi.com/1424-8220/20/9/2453 | |||||
