Which is more accurate, color Doppler echocardiography or angiography?

Hello, color Doppler echocardiography and angiography are different auxiliary examination methods, which have different meanings for different diseases. For the diagnosis of coronary heart disease, the advantages of echocardiography are: knowing the movement of ventricular wall, whether there is ventricular aneurysm, the activity of heart valve and the function of left heart, and the cost is low. Disadvantages: the accuracy of coronary artery evaluation is low, and coronary artery lesions can not be found early. We believe that coronary angiography is the gold standard for diagnosing coronary heart disease. It can directly display the whole coronary artery, clearly see the number of blood vessels, the degree and length of stenosis and the pathological features of coronary artery lesions, and directly observe the overall situation of coronary artery, providing the most scientific basis for further formulating the best scheme, selecting treatment methods (surgery, intervention and drugs) and evaluating risks. I hope my answer is helpful to you, and I wish you health and happiness.