The target dose of the Carvedilol is
50 mg. twice a day for
someone your weight, and your bp is
not low so they could raise that med. If a repeat echo would show an EF of less than 35%, you could very well be a candidate for an ICD. But it could save your life! So it would be a good thing and you will adjust I'm sure. But for now, I would take it just one step at a time and get another echo. For what you want, it would be more accurate than the MRI, and you probably don't need a cath.