摘要
目的应用声学造影实时三维超声心动图评价急性冠状动脉闭塞犬的侧支循环。方法结扎12只健康杂种犬左前降支,分别于结扎前、结扎后即刻、结扎后30min及结扎后180min时行心肌声学造影观察,并计算供血区心肌重量。结果左前降支结扎后所有实验犬均有不同程度的侧支循环建立。结扎后30min,侧支循环供血区心肌重量为(9.65±2.90)g;结扎后180min,侧支循环供血区心肌重量为(12.58±3.98)g;二者之间差异有统计学意义。结论应用声学造影实时三维超声心动图可以很好地显示冠状动脉侧支循环的形成,并获得全面准确的侧支循环区心肌重量。
Objective To evaluate the collateral circulation after canine acute coronary artery occlusion with contrast realtime three-dimensional echocardiography （RT-3DE）. Methods Left anterior descending coronary artery was ligated in 12 healthy mongrel dogs. All dogs underwent myocardial contrast echocardiography （MCE） before ligation, immediately after ligation, at 30 min and 180 min after ligation respectively, and myocardial mass with collateral supply was calculated. Results Different degrees of collateral circulation were established in all dogs after left anterior descending coronary artery ligation. At 30 min after ligation, the myocardial mass with collateral supply was （9. 65±2. 90） g, while at 180 min after ligation were （12.58±3.98） g （P〈0.01）. Conclusion The coronary collateral circulation can be observed clearly and myocardial mass with collateral supply can be quantified accurately with contrast RT-3DE.
出处
《中国医学影像技术》
CSCD
北大核心
2009年第7期1145-1147,共3页
Chinese Journal of Medical Imaging Technology
关键词
超声心动描记术
实时三维
冠状动脉闭塞
造影剂
侧支循环
Echocardiography, real-time three-dimensional
Coronary occlusion
Contrast media
Collateral circulation
