对影响双源CT图像质量的各种扫描参数的分析

目的：通过对双源CT各种扫描参数的设置并扫描来分析与探讨这些参数是如何影响图像质量。方法：在西门子生产的型号为SOMATOM Definition的双源CT上设置相关扫描参数对受检者或体模进行扫描,并对扫描结果加以分析与探讨。结果：体现双源CT图像质量的性能参数可以根据不同需要通过设置相关扫描参数得以改变。结论：双源CT各种扫描参数的设置与图像质量密切相关,有时某种设置在提高图像某方面质量的同时却有可能降低图像另1方面质量,所以必须综合考虑。

Analysis of Different Scanning Parameters Influencing the Quality of Dual Source CT Images

Objective To analyze and discuss how the scanning parameters influence the quality of dual source CT（DSCT） images by the various settings and the corresponding scans. Methods Testees were scanned with corresponding settings of scanning parameters in SOMATOM Definition DSCT produced by SIEMENS and then the results were analyzed and discussed. Results Parameters in relation with the quality of DSCT images could be influenced by the settings of corresponding scanning parameters. Conclusion The settings of scanning parameters have close relationship with the quality of DSCT images, and sometimes one kind of setting can improve image quality in one field but depress image quality in another field, so all factors should be considered synthetically.