What is the difference between ECG and color Doppler echocardiography?

In fact, ECG and color Doppler ultrasound have their own uses and cannot replace each other. If the heart is regarded as a house, ECG means that the circuit of the house is blocked; Color Doppler ultrasound means that the structure of the house is normal and abnormal.

Electrocardiogram (ECG) is a technique to check the regularity of cardiac electrical activity from the body surface and record the changes of cardiac electrical activity. When the patient feels chest tightness, palpitation and chest pain, the electrocardiogram should be checked first. When the patient is ill, it is very important to watch the electrocardiogram in time.

Because these diseases are accompanied by changes in cardiac electrical activity, the diagnosis of ECG depends on the disease. For example, the symptoms of palpitation may change the electrocardiogram during the attack, and the electrocardiogram will completely return to normal during the remission period. Electrocardiogram is mainly used to record the electrical activity of normal heart. Help diagnose arrhythmia. It is helpful to diagnose myocardial ischemia and myocardial infarction and determine the location of myocardial infarction. Diagnosis of cardiac enlargement and hypertrophy. Determine the effects of drugs or electrolytes on the heart.

Judging the pacing situation of artificial heart. Some heart diseases will cause changes in the electrical activity of the heart, but some heart diseases will not affect the electrocardiogram, but only the structure of the heart itself. For example, the heart is enlarged, the heart is weak in contraction, and the heart valve is poorly closed. The diagnosis and discovery of these diseases depend more on the ultrasonic examination of the heart.

Generally speaking, this disease will not be relieved with the relief of symptoms, so it can be checked at any time. The color Doppler of the heart is equivalent to the "perspective eye" of the color Doppler doctor. You can see the size, internal structure and movement of the heart without opening the chest. The patient has no trauma except that the probe compression may cause pain or discomfort. Objective: To diagnose various congenital heart diseases and valvular heart diseases. Used for the diagnosis of various cardiomyopathy and pericardial diseases; Cardiac function evaluation.