论文部分内容阅读
目的探讨64排CT选择性单层面重建方法在冠状动脉成像中的应用价值。方法收集北京市昌平区医院2009年6月～2010年6月常规重建不满意而进行单层面选择性重建后达到诊断要求的患者35例(男21例,女14例,平均年龄55.4岁);采用GEVCT64排螺旋CT进行数据采集;对这些患者应用选择性单层面重建方法进行处理。结果无心律失常组患者最佳期相重建平均为42%R-R间期(范围30%～48%),与常规时相重建血管质量评分对比有显著统计学差异(P<0.05)。心律失常组患者经心电编辑后行相对期相重建,其中4例最佳重建时相为36%,1例患者最佳重建时相为75%,1例患者最佳重建时相为46%,与常规时相重建对比血管质量评分有显著统计学差异(P<0.05)。结论应用选择性单层面重建方法对于常规重建不能达到诊断标准患者的图像质量有较大的改善。
Objective To explore the value of 64-slice CT selective single-layer reconstruction in coronary angiography. Methods 35 patients (21 males and 14 females, mean age 55.4 years old) who reached the diagnosis requirements after selective reconstruction of unilateral floor were collected in Changping District Hospital of Changping District, Beijing from June 2009 to June 2010. Data were collected using GEVCT 64-slice spiral CT; these patients were treated with selective unilaterally reconstructed methods. Results The best phase reconstruction of patients without arrhythmia group was 42% R-R interval (range 30% -48%), which was significantly different from routine time-dependent vascular mass score (P <0.05). The cardiac arrhythmia group was retrospectively reconstructed with electrocardiogram. Among them, the best reconstructive phase was 36% in 4 cases, 75% in 1 case, 46% in 1 case, , There was a significant statistical difference (P <0.05) in vascular quality score compared with routine time phase reconstruction. Conclusion The application of selective single-slice reconstruction has a great improvement on the image quality of patients who can not meet the diagnostic criteria by routine reconstruction.