患者位置決めシステムにおける治療台の移動について

• 赤城 卓

  兵庫県立粒子線医療センター装置管理科

• 馬淵 英之

  三菱電機マイコン機器ソフトウエア株式会社技術第3部

書誌事項

タイトル別名

• Compensating Patient Displacement by Couch Movements in Patient Positioning System
• 資料 患者位置決めシステムにおける治療台の移動について
• シリョウ カンジャ イチギメ システム ニ オケル チリョウダイ ノ イドウ ニ ツイテ

抄録

It is important to position patient accurately in radiation therapy which has a good dose concentration especially, in charged particle radiotherapy. Misalignment of patient to the center of the beam axis causes complication of normal tissue and low dose in the target volume due to the concentration. Hyogo Ion Medical Center has a patient positioning system which can position within lmm. The system consists of X-ray TV system to detect displacement of patient and treatment couch which have 6 axes (3 translations and 3 rotations) to move patient accurately. Since the couch has 3 rotation axes, it is very difficult to express the displacement with translations and rotations of patient by the couch movements. Therefore, expression of translation and rotation to compensate the patient displacement was derived. Test of the expression was done in the patient positioning system. X-ray images were taken before and after moving the couch, and the actual displacement and the calculated one for 6axis were compared. The actual and the calculated agreed each other within lmm for translation and 0.1 deg for rotation.

収録刊行物

• Japanese Journal of Medical Physics

  Japanese Journal of Medical Physics 21 (4), 245-254, 2001

  Japan Society of Medical Physics

キーワード

• patient positioning
• treatment couch
• charged particle
• radiotherapy

詳細情報

• CRID: 1390001204672223104
• NII論文ID: 10007956095
• NII書誌ID: AA11580542
• DOI: 10.11323/jjmp2000.21.4_245
• NDL書誌ID: 6105865
• ISSN: 13455354
• PubMed: 12424390
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6105865
• Web Site: https://search.jamas.or.jp/link/ui/2002257133
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • PubMed
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可