等宽探测器多层螺旋CT直接薄层扫描与回顾性薄层重建的图像质量对比  

Comparative study of the MSCT imaging quality: direct thin - slice scan and retrospective thin - slice reconstruction

作　　者：茹光腾[1] 黄飚[1] 曾辉[1] 王为岗[1] 肖远球[1] 成佛金[1] 周志坚[1] 

机构地区：[1]广东省人民医院CT室,510080

出　　处：《影像诊断与介入放射学》2002年第2期94-95,共2页Diagnostic Imaging & Interventional Radiology

摘　　要：目的 探讨最新的等宽探测器多层螺旋CT直接薄层扫描与回顾性薄层重建图像质量。方法GELightspeed Ultra QA模扫描及患者头部、胸部、腹部各50例进行CT扫描,比较直接薄层图像及回顾性薄层重建图像质量。结果 在扫描条件及重建算法相同情况下,直接薄层扫描图像与回顾性薄层重建图像质量基本一致。结论等宽探测器多层螺旋CT的回顾性薄层重建基本可以取代直接薄层扫描。Objective To evaluate the imaging quality of thin-slice scan and retrospective thin - slice reconstruction by latest MSCT. Method The images were obtained by direct thin - slice scan and retrospective thin -slice reconstruction, including the images of QA model as well as 50 cases of head, chest and abdomen. The imaging quality was evaluated. Results With the same parameter and reconstruction algorithms, these two modalities provided the same imaging quality. Conclusion Retrospective thin - slice reconstruction is considered an alternative for direct thin - slice scan.

关 键 词：图像质量 多层螺旋CT 回顾性薄层重建 薄层扫描 

分 类 号：R814.42[医药卫生—影像医学与核医学]