目的探究分析64层螺旋CT冠脉 成像与DSA血管造影在冠心病中的诊断价 值。方法 筛选出我院心血管内科2011年2 月-2014年8月收治的拟诊为冠心病且均行 64层螺旋CT冠脉成像(MSCTA)与DSA血管造 影检查的病患186例，回顾性统计分析全 部病患的临床资料，以DSA为参照，比较 分析DSA对狭窄冠脉数量、病变程度及内 部斑块性质等的检出情况。结果 MSCTA各 节段狭窄冠脉分支及相应狭窄程度冠脉检 出率与DSA比较，差异不明显，不存在统 计学意义(P>0.05)；MSCT对斑块的检出数 稍低于DSA，其中非钙化斑块与钙化斑块 的检出率与DSA比较，差异不明显，不存 在统计学意义(P>0.05)。结论 MSCTA对狭 窄冠脉的确诊率与DSA相近，临床诊断效 果肯定，能够准确直观的显示冠脉影像， 且具有无创、安全的特点，具有较高的临 床诊断价值。

Objective To explore the value of 64 layers spiral CT coronary artery imaging and DSA angiography in the diagnosis of coronary artery disease. Methods There were 186 cases of patients trested in our hospital's cardiovascular internal medicine from February 2011 to August 2014 ,which were diagnosis with coronary heart disease (CHD) and examined by 64 layers spiral CT coronary artery imaging and DSA angiography (MSCTA). Take a retrospective statistical analysis of clinical data of all patients, DSA as reference, the comparative analysis of DSA for coronary number of stenosis and pathology of the degree and the detection of internal plaques properties. Results Compared each segment narrow coronary artery branches and the corresponding degree of coronary artery detection rate of MSCTA with DSA, no obvious difference were found , there is no significance statistical (P > 0.05); MSCT of plaque slightly below the inspection results of DSA, non calcified plaques with calcified plaque detection rate compared with DSA, no obvious difference, there is no statistical significance (P>0.05). Conclusion MSCTA similar to narrow the positive rate of coronary artery with DSA, clinical diagnosis effect, can accurate and intuitive display coronary artery imaging, and has the characteristics of a noninvasive, safe, and has high value of clinical diagnosis.