256层螺旋CT对冠状动脉斑块及管腔狭窄的诊断价值

THE DIAGNOSTIC VALUE OF CORONARY ARTERY PLAQUE AND LUMINAL STENOSIS WITH 256 LAYER SPIRAL CT

目的将冠状动脉细化为15个节段,研究256层螺旋CT(MSCT)对冠状动脉各节段病变的诊断能力,分析冠状动脉斑块与管腔狭窄程度的关系。方法选取2011年10月—2013年5月在河北联合大学附属医院CT室进行CT冠状动脉血管成像检查的冠心病患者350例作为研究对象,统计冠状动脉各节段斑块及管腔狭窄的数量及分布情况。结果冠状动脉病变在冠状动脉各分支节段上分布的差异有统计学意义(χ2=116.379,P<0.01)。冠状动脉粥样硬化斑块以冠状动脉第六节段发生最多(25.00%),第十四、十五节段发生最少(0.74%、0.30%)。不同类型斑块引起管腔狭窄程度的差异有统计学意义(χ2=36.333,P<0.01)。结论 256MSCT冠状动脉成像能够很好的显示冠状动脉斑块分布特点及各类型斑块与管腔狭窄程度的关系,256MSCT应作为冠心病及冠状动脉病变筛查的首选方法。

Objective To division Partitioning coronary artery to 15 segments, and then study 256 layers of spiral CT in the diagnosis of coronary artery lesions, analyze the relationship between coronary artery plaque and the degree of luminal stenosis. Methods Totally 350 cases were selected as coronary heart dis- ease research subjects which clinical suspected or confirmed coronary heart disease and had a CT coronary angiography in the CT room from October 2011 to May 2013 in author＇s hospital. The number and distribu- tion of coronary artery plaque and luminal stenosis were recorded. Results The distribution of coronary artery plaque in the coronary branch was a significantly different （X2 = 116. 379, P^0.01）. The high- est incidence of coronary artery was in section 6{about 25. 00% ）, section 14 and 15 were at least [0. 74%, 0.30 % ）. The degree of stenosis due to different types of plaque was obviously different,x2 = 36. 333, P〈 0. 01. Conclusion 256 MSCT can display well the coronary artery plaque distribution characteristics and the relationship of types of plaque and the degree of tube stenosis. It should be the preferred method as cor- onary heart disease and coronary artery lesions screening.