医用扇形CT图像重建参数与产生伪影的分析  

Artificial Appearance and Analysis on Medical Fan Beam CT Image Reconstruction

作　　者：刘岩峰[1] 

机构地区：[1]辽宁省丹东市中心医院医学工程部,辽宁丹东118002

出　　处：《临床医学工程》2012年第5期694-695,共2页Clinical Medicine & Engineering

摘　　要：本文在理想CT系统的基础上,通过医用扇形CT图像重建参数与产生伪影的分析,指出了各种伪影与采集条件及重建参数的关系,目的是帮助医务工作者和维修工程师加深CT图像伪影的理解,以便采取更加有效的方法减少图像伪影。This paper pointed out the relation between various artifacts and acquisition conditions, reconstruction parameters through the analysis on medical fan beam CT image reconstruction and artificial appearance based on ideal CT system. The aim was to deepen the comprehension of CT artifacts for medical workers and maintenance engineers and adopt more effective measures to reduce CT imaging artifacts.

关 键 词：CT断层扫描 图像重建 重建参数 伪影 匹配采样 

分 类 号：R445.3[医药卫生—影像医学与核医学]