what's the 'normal' angiogram rate?

I've just been reading this news article regarding the 'normal' angiogram rate http://www.medscape.com/viewarticle/812403?t=1 I'm astonished by how high it is in some centres. Is this reflective of other areas and do we need to redefine a testing strategy?  Too much medicine or defensive medicine? sadian
Source: Doc2Doc BMJ Cardiology - Category: Cardiology Authors: Source Type: forums