@johnroy,
I am in a similar situation, but with minimal calcification. Aneurysm orginally found on CT scan in Jan and had ECHO last week. Met with primary this week; in my case, she said thickening may have been caused by high blood pressure, and at this time the best way to prevent future damage is to keep blood pressure under control. I take BP medications.

I do have a follow-up appointment with a vascular provider next week to discuss aortic size.

What are you doing to control BP?