Blood vessel age

Have you ever heard of ‘blood vessel age’ ? This is a standard of blood vessel strength.
I went to a hospital and took its examination yesterday.
The result was that my estimated age is in the age of 90’s. This is surprising.
But there is a good reason.
I have a diabetes for a long time.
About 8 years ago I had a heart failure and found that my blood vessel is worn out.
So now I have put a catheter to my heart.