Coronary artery CT contrast agent injection site
Disease description:
My uncle went to the hospital for chest pain, and the doctor said that an imaging scan is needed for a clear diagnosis. Where is the contrast agent for the coronary artery CT scan administered?
Doctor's answer (1)
Dr. Wang Xin
Coronary CT angiography typically involves injecting contrast agent into a relatively large vein in the arm or back of the hand. Because this procedure requires rapid intravenous injection of the entire dose of contrast agent within a short period of time using a bolus injection method, it is important to select a large vein to ensure smooth delivery of the contrast agent into the bloodstream. The contrast agent returns to the right atrium via venous circulation, then flows through the right ventricle, pulmonary artery, and pulmonary veins into the left atrium, and finally is pumped into the aorta from the left ventricle, thereby entering the coronary arteries for visualization. This diagnostic method is one of the key tools for diagnosing heart diseases such as coronary artery atherosclerotic heart disease. If necessary, please seek timely medical consultation with a physician.
