多排螺旋CT冠状动脉成像对冠心病的诊断价值

目的:探讨64排螺旋CT(64- MSCT)在冠心病诊断中的应用价值.方法:75例患者同时行64-MSCT冠状动脉成像检查和传统冠状动脉造影(CCA).以CCA结果为金标准,观察64- MSCT对冠状动脉狭窄率≥50％病变的诊断价值.结果:75例患者中,651段血管的图像质量可用于临床诊断,64- MSCT诊断冠状动脉血管狭窄≥50％的灵敏度、特异度、阳性预测值、阴性预测值和准确度分别为87％、99％、92％、98％和98％.结论:64- MSCT可较好地诊断冠状动脉狭窄≥50％的病变,同时具有无创和简便的特点,可以作为临床冠心病筛查的重要方法.

Value of multislice spiral CT angiography for the diagnosis of coronary artery disease

Objective:To evaluate the value of 64-slice spiral CT(64-MSCT) on diagnosis of coronary artery disease.Methods:Seventy-five patients underwent 64-MSCT coronary angiography and conventional coronary angiography(CCA) simultaneously.The diagnostic accuracy of MSCT to detect significant lesions(≥50%)was evaluated according to quantitative CCA.Results:Six hundred fifty-one vessels had diagnostic image quality in 75 patients.Sensitivity,specificity,positive predictive values,negative predictive values and accuracy of the vessels were 87%,99%,92%,98%and 98%,respectively.Conclusions:64-MSCT coronary angiography has an important role in diagnosing coronary artery stenosis higher than 50% and it is also non-invasive and simple,which can be considered as a valuable and important technique for excluding coronary artery disease.