Simulation for a Real-time Positioning System for Radiotherapy Based on Annihilation Gamma-rays' Detection from a Radiopharmaceutical Concentrated Tumor

• KANEKO Junichi H.

  Graduate School of Engineering, Hokkaido University

• TAKADA Eiji

  Toyama National College of Technology

• HARA Yu

  Graduate School of Engineering, Hokkaido University

• FUJITA Fumiyuki

  Graduate School of Engineering, Hokkaido University

• YAMAGUCHI Toru

  Graduate School of Engineering, Hokkaido University

• KUBO Naoki

  Graduate School of Medicine, Hokkaido University

• ISHIKAWA Masayori

  Graduate School of Medicine, Hokkaido University

• SHIRATO Hiroki

  Graduate School of Medicine, Hokkaido University

抄録

To improve radiosurgery for tumors with motion, such as those of lung cancer, a real-time positioning system based on annihilation gamma-ray detection from a radiopharmaceutically concentrated tumor was evaluated using simulations. Several examinations related to the collimator shape were conducted. A pair of wedge-type collimators had good balance in detection efficiency and position sensitivity. As an example of the simulation, a 6 mm shift of a lung tumor of 5 cm diameter was detectable with accuracy of 2 sigma using two pairs of detectors, of which the sizes were 20×70 mm.

収録刊行物

• Progress in Nuclear Science and Technology

  Progress in Nuclear Science and Technology 3 124-126, 2012

  Atomic Energy Society of Japan

キーワード

• radiotherapy
• tumor positioning
• annihilation gamma-rays
• scintillation detectors

詳細情報

• CRID: 1390850646113914112
• NII論文ID: 40019464528
• NII書誌ID: AA12785802
• DOI: 10.15669/pnst.3.124
• NDL書誌ID: 024040048
• ISSN: 21854823
• Web Site: http://id.ndl.go.jp/bib/024040048
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I024040048
• 本文言語コード: en
• データソース種別:
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  • NDL
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  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可