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本文旨在研究狗实验性心肌梗塞时,用两维超声心动图测定室壁活动及增厚是否能够作心肌梗塞大小的指标。应用 V-3000型超声仪及2.25兆赫探头。先作一次在冠状动脉分支放置塑料套圈的手术。10天后,将狗麻醉、拉紧套圈完全阻断冠状动脉分支内的血流。二天后开胸打开心包,在超声探头与心脏心外膜面之间置一油囊,然后作超声心动图检查。从心尖至心底部每隔1厘米作一横断超声图。之后,加大麻醉剂使动物死亡,取出心脏,心腔垫塞纱布后将心脏放于20%甲醛溶液中固定。把心
This article aims to determine whether myocardial infarction size can be used as a measure of wall activity and thickening in two-dimensional echocardiography in dogs with experimental myocardial infarction. Applications V-3000 and 2.25 MHz probes. First make a surgical placement of plastic ferrules in the branch of the coronary artery. Ten days later, the dog was anesthetized and the ferrule was tightened to completely block the flow of blood within the coronary artery branches. Two days later, open the pericardium by opening the chest, place an oil sac between the ultrasound probe and the epicardial surface of the heart, and then perform echocardiography. From the apex to the bottom of the heart every 1 cm for a transverse ultrasound. After that, the anesthetic was added to kill the animal and the heart was removed. The heart was placed in 20% formaldehyde solution and fixed in the heart pad. Take heart