I think that we should not confuse the chain of events. I think Dr. Gulenchyn described it very well: it's never a straight line between the diagnosis and the treatment. You do not fix a problem without knowing what the problem is. The problem can be structural or it can be functional. In order to have a comprehensive understanding of whether the problem is cardiac, oncological--cancer--or any other problem, most of the time we need good functional and structural aspects.
On June 9th, 2009. See this statement in context.