CT心肌灌注联合冠脉CT血管成像对冠心病的诊断效能临床研究

Diagnostic Efficiency of CT Myocardial Perfusion Combined with Coronary CT Angiography for Coronary Heart Disease

目的分析CT心肌灌注(CTP)联合冠脉CT血管成像(CCTA)对冠心病(CHD)的诊断价值。方法选取2017年5月至2018年9月疑似冠心病患者36例为研究对象,均经CCTA、CTP、冠脉造影(CAG)检查,且三项检查在1个月内完成。以CAG为“金标准”,评价CCTA、CTP单独诊断及两者联合诊断的效能。结果以CAG为“金标准”,CCTA诊断灵敏度、特异度、阳性预测值和阴性预测值分别为95.83%、75.00%、88.46%和90.00%,CTP则为83.33%、83.33%、90.91%和71.43%,CCTA+CTP分别为100.00%、91.67%、96.00%和100.00%。结论CTP和CCTA检查具有互补作用,CTP联合CCTA可提高CHD诊断准确性。

Objective To analyze the diagnostic value of CT Myocardial perfusion(CTP)combined with coronary computed tomography angiography(CCTA)in coronary heart disease(CHD).Methods From May 2017 to September 2018,36 patients with suspected CHD were selected and subjected to CCTA,CTP and coronary angiography(CAG)within a month.Taking the CAG as the"golden standard",the diagnostic efficiencies of CCTA,CTP and combined diagnosis of the two were evaluated.Results With CAG as the"golden standard",the diagnostic sensitivity,specificity,positive predictive value and negative predictive value of CCTA were 95.83%,75.00%,88.46%and 90.00%,which of CTP were 83.33%,83.33%,90.91%,and 71.43%,and of CCTA combined with CTP were 100.00%,91.67%,96.00%,and 100.00%,respectively.Conclusion CTP and CCTA are complementary,and the combination of the two can improve the diagnostic accuracy for CHD.