My coronary arteries are highly calcified. Does this mean that there is blockage? Other than angiogram, is there a less invasive test to show block?

Angioangiogram. Usually calcification and coronary artery blockages go hand in hand. You have already had the gold standard test-the angiogram. There are less invasive tests e.g. Coronary ct scan, which usually shows calcium but not as sensitive or specfic as a angiogram.