实用医学杂志2016，Vol.32Issue(10)：1605-1608,4.DOI:10.3969/j.issn.1006-5725.2016.10.016
低管电压结合迭代重建技术在评价冠状动脉钙斑中的应用
Application of low kilovoltage combined with sinogram affirmed iterative reconstruction in assessment of calcified plaque in coronary artery
摘要
Abstract
Objective To investigate the performance of dual source CT scanning combined with low-tube-voltage iterative reconstruction (SAFIRE) for demonstrating coronary artery calcium plaques. Methods 70 patients with clinically suspected coronary atherosclerosis and with normal BMI received SAFIRE-3 or filtered back projection (FBP) for reconstruction after undergoing CT scans with tube voltage range of 100 kV. The CT images (average CT values, noise, SNR, and CNR) and subjective scores (number of calcium plaque, calcium plaque adjacent artifacts, and image quality) were compared between the two groups. Results The average CT value of the aortic root did not differ significantly between the two procedures for reconstruction (P > 0.05). Ob jective evaluation of the images (noise, SNR, and CNR) between the two groups was statistically significant (P < 0.05 for all comparisons), so was image subjective rating (number of calcium plaque and rate of calcium plaque edge)(P < 0.05 for all comparisons). SAFIRE-3 reconstruction was markedly superior to FBP reconstruc-tion. Conclusions Low kilovoltage combined with reconstruction of SAFIRE-3 can reduce calcium plaque adja-cent artifacts and enhance quality of images , which is better than FBP in displaying the morphology and adjacent conditions of calcified plaque; therefore it is worth popularizing.关键词
体层摄影术/X线计算机/冠状动脉/图像质量/迭代重建Key words
Tomography/X-ray computed/Coronary artery/Image quality/Iterative reconstruc-tion引用本文复制引用
曾宪春,王玉权,王荣品,王谦,蒲伟..低管电压结合迭代重建技术在评价冠状动脉钙斑中的应用[J].实用医学杂志,2016,32(10):1605-1608,4.基金项目
贵州省科技计划项目（编号黔科合SY字［2011］3057号）；贵阳市科技计划项目 （）
