Coronary Angiography: A Gold Standard in DiaCoronary Angiography

Coronary angiography is widely recognized as an effective and commonly used diagnostic tool for coronary atherosclerotic heart disease (CHD). In selective coronary angiography, a specially designed cardiac catheter is inserted percutaneously through the femoral artery in the lower limb. Guided by an angiography system, the catheter is advanced retrogradely along the descending aorta to the root of the ascending aorta, where it is directed into the left or right coronary artery. A contrast agent is then injected to clearly visualize the coronary vasculature.

This procedure allows clinicians to determine the presence of vascular stenosis, accurately assess the location, extent, and severity of lesions, evaluate the condition of the vessel walls, and formulate an appropriate treatment plan-whether interventional, surgical, or pharmacological. As a minimally invasive diagnostic technique, coronary angiography is considered safe, reliable, and remains the clinical "gold standard" for diagnosing coronary artery disease.