定量实时心肌声学造影结合小剂量多巴酚丁胺负荷试验在冠心病诊断中的应用价值

被引:4
作者
郭士遵
舒先红
潘翠珍
李延林
葛均波
陈灏珠
机构
[1] 复旦大学附属中山医院心内科上海心血管病研究所,复旦大学附属中山医院心内科上海心血管病研究所,复旦大学附属中山医院心内科上海心血管病研究所,复旦大学附属中山医院心内科上海心血管病研究所,复旦大学附属中山医院心内科上海心血管病研究所,复旦大学附属中山医院心内科上海心血管病研究所,,,,,
关键词
冠状动脉疾病; 心血管造影术; 侧支循环; 多巴酚丁胺;
D O I
暂无
中图分类号
R541.4 [冠状动脉(粥样)硬化性心脏病(冠心病)];
学科分类号
1002 ; 100201 ;
摘要
目的评价定量实时心肌声学造影结合小剂量多巴酚丁胺负荷试验在冠心病诊断中的价值;评价侧支循环对心肌灌注的影响。方法26例住院患者进行了常规超声心动图、基础状态下和小剂量多巴酚丁胺负荷状态下的心肌声学造影以及选择性冠状动脉造影。造影图像采用QLab软件对微泡再充盈曲线进行定量分析,求出各节段的A值、β值及其乘积A×β值。对各节段心肌灌注参数和其供血冠状动脉的狭窄程度进行统计学分析。结果基础状态下,β值和A×β值随着供血冠状动脉狭窄程度的增加而降低(P<0.01);在负荷状态下,A值、β值和A×β值随着供血冠状动脉狭窄程度的增加而降低(P<0.01),且其储备值呈现出相同的趋势(P<0.01);侧支循环的存在与否显著影响各节段的心肌灌注参数及其储备值,且在严重狭窄节段中尤为明显(P<0.01)。结论定量实时心肌声学造影结合小剂量多巴酚丁胺负荷试验可以作为一种敏感的手段用于冠心病临床诊断及其危险性评估。
引用
收藏
页码:419 / 424
页数:6
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