Cardiac Enhanced CT, which can also be called Coronary Enhanced CT, is more accurate, with an accuracy of about 85%-90%. Coronary enhancement CT involves the injection of contrast material to show the coronary vessels in order to see if there is any narrowing of the coronary arteries, if there is any plaque remaining, and where its path leads. It is a non-invasive test that shows images of the coronary arteries mainly by means of computerized reconstructive imaging. Clinically, coronary artery examination can be performed by coronary artery enhancement CT. Before the coronary artery enhancement CT test, it is necessary to test the heart rate of the test person. Generally, the heart rate should be kept below 70 beats per minute. If the heart rate exceeds this frequency, the test results will be easily affected. If the heart rate is too fast before the test, medication such as metoprolol tartrate can be taken under the direction of the physician to regulate it. If the coronary artery enhancement CT shows that there are problems such as narrowing of the coronary arteries, the degree of narrowing can be further understood by means of coronary angiography under the guidance of the physician.