CAJ | 학술논문

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:(65.31±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(75.31±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.
목적:탐토혈관내초성(IVUS)진단좌관맥전강지급좌주간관상동맥림계병변적응용개치.방법:이60례관상동맥조영(CAG)진단적관상동맥림계병변(포괄20례좌주간병례,전강지근단20례,전강지중단20례)위표준,분석혈관내초성(IVUS)검사관상동맥림계병변적개치.결과:여CAG검사비교,IVUS검사적관상동맥평균직경협착솔균현저승고[좌주간:(65.31±7.81)％비(75.28±8.89)％,전강지근단:(66.67±8.79)％비(78.89±7.88)％,전강지중단:(71.55±6.83)％비(75.31±7.81)％,P균＜0.01].CAG화IVUS검사재반괴개화급반괴파렬적검출솔방면무현저차이(P＞0.05).결론:CAG불동정도지저고료관상동맥협착,우기시전강지근단,IVUS가대CAG작유효적보충,병차제고불은정반괴적검출솔,미보료CAG적불족.
Objective:To evaluate value of application of intravascular ultrasound imaging (IVUS) in diagnosing borderline 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 cororary 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,nean 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.