MSCT后处理技术对冠状动脉支架植入术后预后的评价价值研究  

Value of MSCT post-processing technique in evaluating the prognosis after coronary stent implantation

作　　者：李月梅[1] LI Yuemei(Department of Imaging,Shenyang Fifth People's Hospital,Shenyang,Liaoning,110023,China)

机构地区：[1]沈阳市第五人民医院影像科,辽宁沈阳110023

出　　处：《当代医学》2021年第8期84-86,共3页Contemporary Medicine

摘　　要：目的探讨MSCT后处理技术对冠状动脉支架植入术后预后的评价价值。方法选取2017年1月至2018年6月在本院行冠状动脉支架植入手术患者70例作为研究对象,所有患者术后1年均行64排螺旋冠脉CTA和CAG检查,对患者临床资料进行回顾性分析。比较患者预后6个月的MSCT冠脉成像图像和CAG冠脉造影图像,观察MSCT冠状动脉成像在支架腔内狭窄程度的显示情况,比较多平面重组(MPR)、CT仿真内窥镜(CTVE)、曲面重建(CPR)3种不同后处理技术在粥样硬化斑块形态、狭窄范围的显示能力以及MSCT后处理技术在患者血管再狭窄的诊断价值。结果与CAG金诊断标准比较,MSCT对冠状动脉支架植入预后再狭窄诊断的灵敏度为80.56%,特异度为94.21%,准确率为89.53%,阴性预测值为90.28%;MPR对狭窄处斑块形态的检出率为91.43%,显著高于CTVE的62.86%,差异具有统计学意义(P<0.05);CPR对狭窄近、远心端正常血管的检出率为97.14%,高于MPR的65.71%和CTVE的31.43%,差异具有统计学差异(P<0.05)。结论MSCT与CAG在冠状动脉支架植入术后预后再狭窄的诊断具有较好的一致性,MPR后处理技术适合术后支架狭窄形态研究,CPR后处理技术适合血管范围研究。Objective To investigate the value of MSCT post-processing technology in evaluating the prognosis after coronary stent implantation.Methods 70 patients who underwent coronary stent implantation in our hospital from January 2017 to June 2018 were selected as the research subjects.All patients underwent 64-row spiral coronary CTAand CAG examination one year after operation,and the patient data were retrospectively analyzed.MSCT coronary angiography images and CAG coronary angiography images of patients with six-month prognosis were compared.To observe the degree of stenosis in stent lumen by MSCT coronary angiography,and to compare the display ability of three different post-processing techniques of multiplanar reconstruction(MPR),CT virtual endoscopy(CTVE)and curved surface reconstruction(CPR)in atherosclerotic plaque morphology and stenosis range,and the diagnostic value of MSCT post-processing technology in vascular restenosis of patients.Results The sensitivity,specificity,accuracy and negative predictive value of MSCT were 80.56%,94.21%,89.53%and 90.28%,respectively;the detection rate of MPR for stenosis plaque morphology was 91.43%,which was significantly higher than 62.86%of CTVE,the difference was statistically significant(P<0.05).The detectable rate of CPR was 97.14%,which was higher than 65.71%of MPR and 31.43%of CTVE,the difference was statistically significant(P<0.05).Conclusion MSCT and CAG have good consistency in the diagnosis of restenosis after coronary stent implantation.MPR postprocessing technology is suitable for the study of stent stenosis morphology and CPR postprocessing technology is suitable for the study of vascular range.

关 键 词：多层螺旋CT 冠状动脉 支架 再狭窄 

分 类 号：R541.4[医药卫生—心血管疾病]