Heart attack imaging should refer to coronary arteriography, which is a commonly used clinical technique to examine the narrowing of coronary arteries. Coronary angiography is usually performed by puncturing the femoral artery or radial artery, injecting contrast medium to show the location and degree of coronary artery stenosis, and then choosing the appropriate treatment plan accordingly. If the stenosis is more severe, further coronary stenting can be performed. This test is a minimally invasive diagnostic technique that is widely used in the clinic and is less traumatic for patients, and can be used as the gold standard for the diagnosis of coronary artery disease. After angiography, the sheath is removed and pressure is applied to the puncture point to stop bleeding. The patient needs to lie down and brake after the angiography to avoid blood leakage, redness and swelling of the puncture point. It is recommended that the treatment be under the supervision of a physician to avoid any delay in the treatment of the disease.