The problem of setting the optimal PID parameters of the controller is discussed.
讨论了整定PID控制系统控制器的优化参数问题。
Conclusion:A superior CTVE image depends on optimal selection of the scanning reconstruction parameters, display setting and threshold values, as well as the operator′s experience and skills.
结论：高质量的儿童CTVE图像依赖于扫描重建参数的合理选择、最佳的观察阈值及方位的选择，以及操作者的技巧和熟练程度。
Conclusion:A superior CTVE image depends on optimal selection of the scanning reconstruction parameters, display setting and threshold values, as well as the operator′s experience and skills.
结论：高质量的儿童CTVE图像依赖于扫描重建参数的合理选择、最佳的观察阈值及方位的选择，以及操作者的技巧和熟练程度。
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