J Korean Soc Ther Radiol Oncol.  2006 Sep;24(3):185-191.

The Development of Quality Assurance Program for CyberKnife

Affiliations
  • 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.

Abstract

PURPOSE: 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.
MATERIALS AND METHODS
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.
RESULTS
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.
CONCLUSION
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.

Keyword

CyberKnife; Stereotactic radiotherapy; Quality assurance program

MeSH Terms

Constitution and Bylaws
Humans
Korea
Mortuary Practice
Quality Control
Radiotherapy
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