The site provides a definition of cat scan calcium score and cat scan angiogram. I had a CC score and angiogram a couple of years ago. I believe the state-of-art for CAT has scans of 256 slices....provides more detail and sharper images.
I find the Mayo Clinic, Minn or Cleveland Clinic to be a good source for medical procedures, tests, dx, prognosis, etc.
quickly looked at that web site and didn't see high speed 64 slice CAT scan with dye. This is a relatively new procedure....non-invasive compared to a invasive cath. Had one done a month ago.