Advanced compton camera system for nuclear medicine: Prototype system study

Ryota Kohara, Takashi Shirahata, Tetsuo Nakazawa, Osamu Miyazaki, Shigeto Kabuki, Shunsuke Kurosawa, Kentaro Miuchi, Hidetoshi Kubo, Toru Tanimori, Tadaki Nakahara, Etsuo Kunieda, Atsushi Kubo, Hirofumi Fujii

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A gamma-ray imager called Compton camera is expected as a new medical instrument for nuclear medicine. It has several advantages over the conventional techniques such as positron emission tomography and single photon emission tomography. Especially, the Compton camera can expand the range of diagnosis and therapy because various gamma-ray energies can be measured without changing system configuration. Many studies have been made on the Compton camera, however, its medical application is still challenging because in clinical environments it is very difficult to image targets due to large background activities. We will establish the imaging techniques and demonstrate the imaging capabilities of the advanced Compton camera. We constructed the prototype system with the gaseous chamber and the scintillation counter. We performed phantom experiments with a 131I gamma-ray source, assuming clinical environments. We evaluated the contrast resolution and found the limitations on the concentration ratio and the magnitude of statistics for imaging hotspots in the large background activity. We performed the Compton tomography in the only three-direction scan and obtained an axial image. We also demonstrated the fusion image with X-ray CT for clinical application.

本文言語English
ホスト出版物のタイトル2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
ページ3906-3908
ページ数3
DOI
出版ステータスPublished - 2008
外部発表はい
イベント2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008 - Dresden, Germany
継続期間: 2008 10 192008 10 25

出版物シリーズ

名前IEEE Nuclear Science Symposium Conference Record
ISSN(印刷版)1095-7863

Other

Other2008 IEEE Nuclear Science Symposium Conference Record, NSS/MIC 2008
国/地域Germany
CityDresden
Period08/10/1908/10/25

ASJC Scopus subject areas

  • 放射線
  • 核物理学および高エネルギー物理学
  • 放射線学、核医学およびイメージング

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