tomah,
The cardiac CT is an exciting new technology. However, it really still is in its infancy with respect to how to use it to guide therapy. For now, I personally use it as a screening tool for coronary artery disease, which it has diagnosed in you. Also, the occlusion of the RCA with collateral vessels from the left, may not be completely accurate, as cardiac CT may miss a collateralized vessel that is almost completely occluded.
The next step is a difficult one. I generally guide my therapies and interventions based on the presence or abscence of ischemia or symptoms. The CT doesnt tell you anything about the former, and your inability to exercise makes gauging the latter difficult.
With respect to your quesitons:
1) What tests do you think would be warranted for an total blockage?
Either an angiogram or a stress test to look for ischemia depending on how invasive you would want to be.
What risks is this blockage for future heart problems?
The presence of coronary disease is a marker for increased risk for cardiovascular complications. The goal for you would be to lower that risk as much as possible through strict control of your cardiac risk factors.
How unusual would it be for a calcium score of 3 to have this significant blockage?
The calcium score is a marker for coronary disease. Some people develop more calcium in their atherosclerotic plaques than others. I wouldnt give this finding too much thought.
good luck
Do follow up on this, if only for peace of mind. We don't have to take what some Dr's/Consultants tell us. It's your life, not theirs & if you are in any doubt, don't give up!!
I'm very interested in this 64 Slice CT. I don't think we have it here in Ireland, but I'd love the chance to get it done. Just to see what's going on with my heart !!
I saw it on Oprah Winfrey, very exciting, but as the Dr said early, very much in it's early stages. They need to understand what they are looking at. Some people have small blockages that will never effect them. Others have blockages in certain areas that will cause a massive heart attack & they will die immediately.
As a matter of interest, how much does it generally cost to get done ?
Good Luck Tomah, let us know how you get on !