螺旋CT的多排多层探测器应用设计

目的设计螺旋CT机的多排多层探测器，提高影像质量。方法将常规多排探测器改进为多排多层探测器，输出端接超高倍光电耦合放大器，可成倍提高探测器与采集系统的信噪比。结果多排多层探测器比同样排数的单层探测器输出的信噪比高、省时、剂量少，且图像质量高。结论多排多层探测器输出的数据量大幅增加，使CT系统的成像质量显著提高。

The Design of the Multi - raw and Slice Detector of the Spiral CT

Objective A multi - row and slice detector of spiral CT is designed to improve file image quality. Methods The regular multi - row detector has been modified into the multi - row and slice detector. At the output end of the modified detector, ultra high optically coupled amplifiers were connected. The multi - row and slice detector could double increase the signal - to - noise ratio of the detector and signal acquisition system. Results The modified detector showed higher signal to noise ratio, higher working speed, lower dose and higher image quality than the unmodified one. Conclusion This multi - row and slice detector can significantly increase the output data and greatly improve the image quality of CT system.