Several results are possible after undergoing cardiac catheterization (angiogram of the blood vessels of the heart).
The best result is that there are no critical blockages detected by the test. The chest pain and/or abnormal test results are not related to significant blockages in the arteries supplying blood to the heart. One of the most serious causes of the clinical findings has been ruled out with essentially 100% certainty. It would be like a cancer doctor telling you the good news that you do not have cancer.