与IP板相关的CR图像伪影分析及对策

Analysis of IP Related Factors Causing CR Fake Images and Countermeasures

计算机射线照相(CR)获得的影像往往会带有各种伪影,直接影响诊断质量,伪影可能来源于整个CR系统的各个部分,如:成像板(IP)、扫描、读出、处理、擦除、激光照相机等等,而成像板作为CR系统中用于捕俘射线影像信息的传感器,其影响是最关键的,本文集中分析与IP板相关的图像伪影及应对措施。

Radiographs yielded through computed radiography （CR） often carry fake images directly affecting the diagnosis quality. Fake images may be caused by different parts of CR system,e. g. imaging plate （IP）,scanning,readout,processing,erasing,laser camera etc,among them,the imaging plate which behaves as the sensor capturing the radiographic image,plays a key role. This paper analyzed mainly IP related factors causing CR fake image and their remedy measures.