Can color Doppler echocardiography detect coronary artery stenosis or plaque?

In real life, many patients will ask Dr. Zhang whether coronary artery stenosis of the heart can be detected by color Doppler echocardiography. Obviously, this is a question that many people want to know. Dr. zhang will answer this question for you today. In fact, many popular science treatments say that echocardiography can not reflect the degree of coronary artery stenosis, which is not wrong. But it should be said that this is not rigorous and objective, because color Doppler echocardiography can indirectly reflect the existence of coronary artery stenosis in some cases.

Then, when can color Doppler ultrasound indirectly reflect the degree of stenosis of heart blood vessels? Generally speaking, when the coronary artery disease is serious, such as the coronary artery stenosis is more than 75%, if the myocardial ischemic attack is done by color Doppler ultrasound, we can see that color Doppler ultrasound indirectly reflects the signs of myocardial ischemia, which is also uncoordinated, and we can see the wall motion or wall motion disorder. This abnormal movement of the heart wall is actually the external manifestation of coronary artery stenosis. However, it should be noted that once abnormal wall motion occurs, it can only be said that severe coronary artery stenosis is highly suspected, but it cannot explain or explain the specific degree of stenosis.

At this time, according to the severity of stenosis, coronary angiography is often needed to make it clear. In fact, color Doppler echocardiography can make clear the situation of coronary heart disease. In addition to abnormal wall motion during myocardial ischemia, patients with old myocardial infarction will also see the manifestations of old myocardial infarction-wall motion disorder, decreased wall motion range and so on. This characteristic change of myocardium caused by myocardial infarction may also suggest that patients have serious events such as myocardial infarction.

However, even if the stenosis of cardiac blood vessels has been treated, this characteristic change may not disappear and may persist. However, in this case, abnormal heart wall motion does not mean that the patient has coronary artery stenosis, but that the stenosis has been cured, and abnormal heart wall motion only occurs because of myocardial infarction.