CTA与DSA在冠状动脉斑块及血管狭窄中的对比研究

Comparative study of 64-slice spiral CT and DSA in the in the diagnosis of coronary artery stenosis

目的探究64排螺旋CT在冠状动脉病变中的应用,以提高CTA在冠状动脉血管狭窄的诊断水平。方法分析40例冠心病确诊病例的患者分别行冠状动脉CT造影检查及冠状动脉DSA检查的临床及影像资料,比较两种方法对冠状动脉狭窄的影像学诊断及斑块性质对血管狭窄相关性的分析。结果1)MSCTA各节段狭窄冠状动脉分支及相应狭窄程度冠状动脉检出率与DSA比较,差异不明显,不存在统计学意义(P>0.05);2)CTA诊断结果显示,冠状动脉轻度狭窄多为钙化斑块(71.4%),中/重度狭窄多为混合斑块,分别为58%和56.5%。结论MSCTA对狭窄冠状动脉的确诊率与DSA相近,而且能够准确直观的显示冠状动脉斑块性质,不仅具有无创、安全的特点,还对指导冠心病的诊断预防及治疗具有较高临床应用价值。

Objective To improve the diagnostic level of coronary artery stenosis by the application of 64-slice spiral CT in coronary angiography. Methods We investigated the diagnostic value of 64 slice spiral CT coronary angiography and DSA angiography in coronary artery stenosis. Results There was no significant difference between MSCTA and DSA in the detection rate of coronary artery branches and the corresponding degree of stenosis in each segment of MSCTA ( P >0.05). Conclusion The diagnostic rate of MSCTA foRcoronary stenosis is similaR to that of DSA. The clinical diagnosis effect is positive, the image of coronary artery can be displayed accurately and intuitively, and it has the characteristics of non-invasive and safe, and has higheRclinical diagnostic value.