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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。
Objective: To investigate the value of 64-slice spiral CT (64-MSCT) in the diagnosis of coronary heart disease. Methods: Sixty-five patients underwent both 64-MSCT coronary angiography and conventional coronary angiography (CCA). To CCA results as the gold standard, observe 64-MSCT coronary artery stenosis rate of ≥ 50% of the diagnosis. Results: In the 75 patients, the image quality of the 651th segment of blood vessels could be used for clinical diagnosis. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of 64-MSCT in diagnosing coronary artery stenosis≥50% were 87% 99%, 92%, 98% and 98%. Conclusion: 64-MSCT can diagnose ≥50% lesions of coronary artery stenosis better, with noninvasive and simple features, which can be used as an important method for clinical coronary heart disease screening.