The Journal of Korean Society for Radiation Therapy (대한방사선치료학회지)
- Volume 21 Issue 1
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- Pages.1-7
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- 2009
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- 1598-8449(pISSN)
Evaluation on the Accuracy of Targeting Error Correction Through the Application of Target Locating System in Robotic CyberKnife
로봇 사이버나이프에서 위치인식시스템을 이용한 Targeting Error값 보정의 정확성 평가
- Jeong, Young-Joon (Department of Radiation Oncology, SoonChunHyang University Hospital) ;
- Jung, Jae-Hong (Department of Radiation Oncology, SoonChunHyang University Hospital) ;
- Lim, Kwang-Chae (Department of Radiation Oncology, SoonChunHyang University Hospital) ;
- Cho, Eun-Ju (Department of Radiation Oncology, SoonChunHyang University Hospital)
- 정영준 (순천향대학교서울병원 방사선종양학과) ;
- 정재홍 (순천향대학교부천병원 방사선종양학과) ;
- 임광채 (순천향대학교부천병원 방사선종양학과) ;
- 조은주 (순천향대학교서울병원 방사선종양학과)
- Received : 2008.11.03
- Accepted : 2009.01.25
- Published : 2009.03.31
Abstract
Purpose: The purpose is to evaluate the accuracy of correcting the targeting error through the Target Location System (TLS) for the location change error of the reference point which arises from the movement or motion of patient during the treatment using the CyberKnife. Materials and Methods: In this test, Gafchromic MD-55 film was inserted into the head and neck phantom to analyze the accuracy of the targeting, and then the 6 MV X-ray of CyberKnife (CyberKnife Robotic Radiosurgery System G4, Accuray, US) was irradiated. End to End (E2E) program was used to analyze the accuracy of targeting, which is provided by Accuray Corporation. To compute the error of the targeting, the test was carried out with the films that were irradiated 12 times by maintaining the distance within the rage of
목 적: 로봇 사이버나이프에서 환자의 움직임에 의한 기준점의 위치변화 오차가 위치인식시스템(target location system, TLS) 을 통하여 targeting error값이 정확히 보정(correction)되는지 평가하고자 한다. 대상 및 방법: 본 실험은 targeting의 정확성을 분석하기 위해 head and neck팬텀에 Gafchromic 필름(MD-55)을 삽입한 후, 사이버나이프(CyberKnife Robotic Radiosurgery System G4, Accuray, US)의 6 MV X선을 조사하였다. 필름 분석은 Accuray사에서 제공하는 End to End (E2E) 프로그램을 이용하였다. 기준점의 위치에서 x, y, z방향으로