血管内超声诊断冠状动脉临界病变的临床研究(英文)  

Value diagnosing coronary borderline lesion by intravascular ultrasound imaging

作　　者：蔡恒志[1] 于淮[1] 张玉林[1] 孙萌[1] 于波[1] 

机构地区：[1]哈尔滨医科大学附属第二医院心内科,黑龙江哈尔滨市150001

出　　处：《心血管康复医学杂志》2011年第6期540-543,共4页Chinese Journal of Cardiovascular Rehabilitation Medicine

摘　　要：目的:探讨血管内超声(IVUS)诊断左冠脉前降支及左主干冠状动脉临界病变的应用价值。方法:以60例冠状动脉造影(CAG)诊断的冠状动脉临界病变(包括20例左主干病例,前降支近段20例,前降支中段20例)为标准,分析血管内超声(IVUS)检查冠状动脉临界病变的价值。结果:与CAG检查比较,IVUS检查的冠状动脉平均直径狭窄率均显著升高[左主干:(65.3l±7.81)%比(75.28±8.89)%,前降支近段:(66.67±8.79)%比(78.89±7.88)%,前降支中段:(71.55±6.83)%比(75.3l±7.81)%,P均<0.01]。CAG和IVUS检查在斑块钙化及斑块破裂的检出率方面无显著差异(P>0.05)。结论:CAG不同程度地低估了冠状动脉狭窄,尤其是前降支近段,IVUS可对CAG作有效的补充,并且提高不稳定斑块的检出率,弥补了CAG的不足。Objective：To evaluate value of application of intravascular ultrasound imaging （IVUS） in diagnosing border- line lesions in left anterior descending artery （LAD） and left main coronary artery （LM）. Methods： According to results of coronary angiography （CAG） in 60 cases with coronary borderline lesions, including 20 cases in LM, 20 cases in proximal segment of LAD and 20 cases in middle segment of LAD, the diagnostic value of IVUS in coronary borderline lesion was evaluated. Results： Compared with CAG, mean diameter stenosis rate of each coronary artery [LM： （65.31 ±7.81） % vs. （75.28±8.89） % ,proximal segment of LAD.. （66.67±8.79）% vs. （78.89±7.88）% ,middle segment of LAD： （71.55±6.83） % vs. （75.31±7.81） %, P〈0.01 all] significantly increased in IVUS. The differences of detection rate of plaque calcification and plaque rupture were no significant between CAG and IVUS （P〈0.05）. Conclusion：Different degrees of underestimation of coronary artery stenosis exist in CAG, especially in proximal segment of LAD. IVUS can be an effective complement to CAG.

关 键 词：超声心动描记术 冠状动脉疾病 冠状血管造影术 

分 类 号：R541.409[医药卫生—心血管疾病]