Without coronary angiography, it is usually possible to find out if you have coronary artery disease through other tests, such as combining the patient’s symptoms, electrocardiogram, cardiac ultrasound, blood markers of myocardial damage, coronary artery CTA and other tests to determine.
Coronary heart disease is the occurrence of atherosclerosis in the coronary arteries causing narrowing or occlusion of the lumen, resulting in myocardial ischemia and chest pain and chest tightness. If the narrowing of coronary vessels is greater than 50%, the diagnosis can be confirmed. Coronary CTA is to assess the degree of stenosis of heart blood vessels by means of CT. Generally, moderate stenosis is 50% to 70% stenosis, and greater than 70% is severe stenosis, and severe stenosis can also confirm the diagnosis of coronary artery disease.
When the patient has typical symptoms such as oppressive chest pain, sweating, chest tightness, etc., the depression of the ST segment of the ECG can suggest myocardial ischemia, and if the ST segment of the ECG is elevated upward in the arch, and the blood markers of myocardial injury such as troponin T are elevated, it can be generally diagnosed as acute myocardial infarction, which is a type of coronary artery disease.
If the patient has chest tightness, chest pain and other symptoms, it is recommended to go to the hospital in a timely manner, combined with the examination to clarify the disease, and follow the doctor’s instructions for treatment.