Am I a candidate for a CCTA?

I am 81. I had 3 stents put in my LAD artery two years ago. I was told my arteries are narrow and I was not a candidate for bypass surgery. To make a long story short, after he inserted two stents, I had a full blown heart attack in recovery and a third was inserted.

I feel pretty good but am very apprehensive, if not paranoid. The cardiologist who did the procedure is very renowned, but also very flippant, as is my non-invasive cardiologist, whom I have seen for about 25 years.

My last Echocardiogram was good, I have no damage, and an improvement over a year ago. But, I understand that it does not show how much blockage there is. So, I am wondering if a CCTA would tell me how things look and give me some peace of mind.

BTW, we live in nice area with a good hospital, yet, it takes about 2-3 months to get an appointment with a cardiologist, if I get the nerve to get a second opinion, at, say, UCLA.

Does anyone have a suggestion?