对多层CT的多排探测器的改进技术及实验研究  

Improvement Techniques and Experiment Research of Multi-detector of Multi-slice CT

作　　者：苏重清[1] 刘东红[1] 杨立国[1] 乔驰[1] 陶行成[1] 崔力元[1] 郑伟[1] 郭媛媛[1] 

机构地区：[1]大庆油田总医院器械科,黑龙江大庆163001

出　　处：《中国医疗设备》2013年第3期34-36,共3页China Medical Devices

摘　　要：目的设计一种新型多层CT机的多排探测器,降低X线剂量和提高分辨率。方法在CT探测器下面再加探测器,接收穿透上层探测器的X线获得能量与分辨率不同的额外数据,和原来探测器数据做各种形式的叠加成像。结果在现有CT探测器上加X线衰减层模拟第1层探测器而视现有CT探测器为本设计的第2层探测器扫描,证明了第2层探测器的数据可用。结论通过在现有CT上的模拟实验,证明此设计是可行的。Objective To design a new kind of mulfidetector for multi-slice CT, so as to decrease X-ray dosage and increase resolution. Methods Laid additional detectors under the detectors of CT, to obtain new X-ray energy and new resolution data through the upper detectors and make various images with original detector data. Results Laid a layer of X-ray attenuation material on the present detectors of CT as the first layer detector and regarded the present detector as the second layer detector in the design to scan, the second layer detector data is testified available. Conclusion Through simulating tests on present CT scanner, the design is testified to be feasible.

关 键 词：多排探测器 多层CT机 分辨率 伪影 

分 类 号：R445.3[医药卫生—影像医学与核医学]