Online correction of setup error using EPID in order to reduce systematic error and random error and then improve setup precision.
在EPID系统下进行实时摆位误差纠正，可进一步降低摆位系统误差和随机误差，提高摆位精度。
Conclusion the cone beam ct and on-line correction could reduce the setup error.
结论锥束CT扫描在线校正能够缩小摆位误差。
Conclusion the cone beam ct and on-line correction could reduce the setup error.
结论锥束CT扫描在线校正能够缩小摆位误差。
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