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J Korean Soc Ther Radiol Oncol > Volume 24(3); 2006 > Article
The Journal of the Korean Society for Therapeutic Radiology and Oncology 2006;24(3): 185-191.
The Development of Quality Assurance Program for CyberKnife
Jisun Jang, Dong Han Lee, Young Nam Kang, Dong Oh Shin, Moon Chan Kim, Sei Chul Yoon, Ihl Bohng Choi, Mi Sook Kim, Chul Koo Cho, Seong Yul Yoo, Soo Il Kwon
1CyberKnife Center, Kangnam St. Marys Hospital, Korea.
2CyberKnife Center, Korea. hanny@kcch.re.kr
3Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Korea.
4Department of Radiation Oncology, The Catholic University of Korea, Collage of Medicine, Korea.
5Department of Neurosurgery, The Catholic University of Korea, Collage of Medicine, Korea.
6Department of Radiation Oncology, School of Medicine, Kyung Hee University, Seoul, Korea.
7Department of Medical Physics, Kyonggi University, Suwon, Korea.
Standardization quality assurance (QA) program of CyberKnife for suitable circumstances in Korea has not been established. In this research, we investigated the development of QA program for CyberKnife and evaluation of the feasibility under applications.
Considering the feature of constitution for systems and the therapeutic methodology of CyberKnife, the list of quality control (QC) was established and divided dependent on the each period of operations. And then all these developed QC lists were categorized into three groups such as basic QC, delivery specific QC, and patient specific QC based on the each purpose of QA. In order to verify the validity of the established QA program, this QC lists was applied to two CyberKnife centers. The acceptable tolerance was based on the undertaking inspection list from the CyberKnife manufacturer and the QC results during last three years of two CyberKnife centers in Korea. The acquired measurement results were evaluated for the analysis of the current QA status and the verification of the propriety for the developed QA program.
The current QA status of two CyberKnife centers was evaluated from the accuracy of all measurements in relation with application of the established QA program. Each measurement result was verified having a good agreement within the acceptable tolerance limit of the developed QA program.
It is considered that the developed QA program in this research could be established the standardization of QC methods for CyberKnife and confirmed the accuracy and stability for the image-guided stereotactic radiotherapy.
Key Words: CyberKnife, Stereotactic radiotherapy, Quality assurance program
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