Hi Michael,
It sounds like that is a pretty small artery -- and if it is that small they probably don't need to open it.
There is good data for Atorvastatin (Lipator) 80 mg causing plaque regression compared to simvastatin (Zocor). The regression data is by intravascular ultrasound quantitating the plaque volume.
http://www.forbes.com/home_europe/2003/11/12/cx_mh_1112pfe.html
Lipator has not been compared directly to Crestor for plaque regression. If it were me, I would prefer to be on Lipator because the data is better for now.
As always, exercise helps improve your cholesterol profile.
Below is a link discussing the benefits of the Mediterranean diet. It may be of benefit.
Good luck.
http://www.postgradmed.com/issues/2002/08_02/curtis.htm