Please ask the cardiovascular teacher about the difference between coronary CT imaging and coronary angiography.

First of all, it should be clear that coronary angiography is the "gold standard" of coronary artery examination, which means that all coronary artery related examinations should be based on the results of coronary angiography as the final standard.

The phenomenon of mislayer refers to the change in the position of the blood vessels due to the beating of the heart, resulting in inaccurate visualization of the blood vessels. There is a thickening of the vessel that appears to be narrowed. However, it can be determined by distal blood flow, changes in vessel continuity, and the experience of the CT reader as to whether it is a mislayer or a stenosis.

Coronary CT examination is a tomographic examination after reconstruction of the vascular examination method. Its advantages are fast time, less pain, high accuracy, and the results of CT above 64 rows are not much different from the results of coronary angiography. The disadvantage is that coronary CT for the judgment of calcified spots and this examination by the examination of the patient's heart rate is affected by the patient, for the existence of angina pectoris patients or coronary CT examination positive patients need to carry out coronary angiography.

Coronary angiography is a well-established coronary artery test, with the advantage of reliable results, high accuracy, and little pain. At the same time, stenting and coronary dilatation can be performed if needed. It is a diagnosis and treatment method that combines examination and treatment in one. The disadvantages of the procedure are the damage to the blood vessels, the need to inject more contrast medium, and the risk of coronary vasospasm due to the stimulation of the guidewire in the coronary arteries.

Your mother's case should not be a big problem, there is no angina feeling, the coronary artery CT examination did not see positive manifestations. She is taking statins on time, so her coronary arteries should be stable. But the specific situation should be analyzed, if the physical condition and economic situation permits, you can do a coronary angiography examination, there is no harm to check.

PS: Every cardiologist in a major hospital should be able to look at the coronary CT films, and the doctors in the CT room are more proficient in the coronary CT examination itself, and the cardiologists are more closely integrated with the clinic. I myself look at the films first, and then read the report.