It is very important to represent the region and its relationship between them in segmented images in image analysis, which is the bases of postprocessing.
在影像分析过程中，分割图像上的区域及其相互关系的表示是十分重要的。它是后继分析处理过程的基础。
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Conclusion: Image quality of CTPA is mainly influenced by scan and postprocessing technique. Rational application of imaging technique attributes to improved diagnostic accuracy of PE.