安徽医科大学学报2016，Vol.51Issue(11)：1650-1652,1653,4.DOI:10.19405/j.cnki.issn1000-1492.2016.11.022
腹部双能量能谱CT成像中混合能量模式与单能量模式重建图像的比较研究
Comparative study of abdominal imaging quality between mixed energy mode and mono-energy mode reconstruction on dual-energy spectral CT
摘要
Abstract
Objective To evaluate the difference of mixed energy mode and mono-energy mode reconstruction ima-ges on abdomen spectral CT imaging. Methods Abdomen pre-contrast and contrast enhanced CT scans were ap-plied with spectral CT on sixty patients. Images were reconstructed by two-modes:QC mode and Mono mode. The following variables were compared:signal-to-noise( SNR) of liver, spleen and pancreas, contrast-to-noise( CNR) of liver, spleen and pancreas. Two experienced radiologists evaluated the artifact level of images of the two reconstruc-tion modes. Results Compared with mixed-energy mode images,70 keV mono-energy images yielded significantly greater SNR and CNR(P<0. 05). Subjective score of 70 keV mono-energy images was higher than that of mixed-energy image(P<0. 001). Conclusion In abdominal spectral CT imaging,mono-energy reconstruction can provide higher quality of images than mixed-energy reconstruction and can replace mixed-energy images in clinical diagno-sis.关键词
腹部/体层摄影术/X线计算机/能谱CT/重建模式Key words
abdomen/computed tomography/X-ray computed/spectral CT/reconstruction mode分类
医药卫生引用本文复制引用
韦炜,邓克学,赵英明,罗英姿..腹部双能量能谱CT成像中混合能量模式与单能量模式重建图像的比较研究[J].安徽医科大学学报,2016,51(11):1650-1652,1653,4.基金项目
安徽省科技厅公益性技术应用研究联动计划项目(编号:1501ld04028) （编号:1501ld04028）
国家自然基金青年科学基金项目(编号:81501468) （编号:81501468）
