Presentation 2020-01-30
[Poster Presentation] At-211 imaging with a static SPECT system
Michi Okoshi, Hiroki Yamada, Kazumi Murata, Koichi Ogawa,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) An alpha-ray irradiation therapy with At-211 has been a recent research interest. At-211 decays with X and/or gamma-rays, which can be used for imaging of an At-211 distribution. Although we applied an Electron Tracking Compton Camera (ETCC) to an imaging of the At-211 distribution in our previous study, we could not obtain images with sufficient quality. This issue was derived from a low decay rate of gamma-rays and low detection efficiency of the ETCC. In this study, we performed simulations with a static SPECT system with multi-pinhole collimators. This system detects 79 keV X-rays, which are much more frequently emitted from At-211 than gamma-rays. As a result of simulations, we obtained reconstructed images of the At-211 distribution with sufficient quality.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) astatine-211 / static SPECT system / interstitial therapy / multi-pinhole collimator
Paper # MI2019-108
Date of Issue 2020-01-22 (MI)

Conference Information
Committee MI
Conference Date 2020/1/29(2days)
Place (in Japanese) (See Japanese page)
Place (in English) OKINAWAKEN SEINENKAIKAN
Topics (in Japanese) (See Japanese page)
Topics (in English) Medical Image Engineering, Analysis, Recognition, etc.
Chair Yoshiki Kawata(Tokushima Univ.)
Vice Chair Takayuki Kitasaka(Aichi Inst. of Tech.) / Hidekata Hontani(Nagoya Inst. of Tech.)
Secretary Takayuki Kitasaka(Yamaguchi Univ.) / Hidekata Hontani(Univ. of Hyogo)
Assistant Hotaka Takizawa(Tsukuba Univ.) / Yoshito Otake(NAIST)

Paper Information
Registration To Technical Committee on Medical Imaging
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] At-211 imaging with a static SPECT system
Sub Title (in English)
Keyword(1) astatine-211
Keyword(2) static SPECT system
Keyword(3) interstitial therapy
Keyword(4) multi-pinhole collimator
1st Author's Name Michi Okoshi
1st Author's Affiliation Hosei University(Hosei Univ.)
2nd Author's Name Hiroki Yamada
2nd Author's Affiliation Hosei University(Hosei Univ.)
3rd Author's Name Kazumi Murata
3rd Author's Affiliation Hosei University(Hosei Univ.)
4th Author's Name Koichi Ogawa
4th Author's Affiliation Hosei University(Hosei Univ.)
Date 2020-01-30
Paper # MI2019-108
Volume (vol) vol.119
Number (no) MI-399
Page pp.pp.189-192(MI),
#Pages 4
Date of Issue 2020-01-22 (MI)