The work of these to men compliments and in my veiw, explains some of the missing detail in Dr. Zamboni's work.
PLEASE read all of this man's work on his web site and it may have answers for the re-stenosis issues as well as many other, as yet unconnected aspects of CCSVI.
http://uprightdoctor.wordpress.com/
The site has allot of information that is in laymans terms, for a rational person like me it gives some meaning to CCSVI that is missing.
Enjoy.

Dr. Scalafani this is even more important for you in your search for answers!!!!!!!!!!!!!!!!