If TMT is come abnormal, then you have to undergo angiogram and angioplasty, else slowly the heart wil get affected more and you might be at risk of heart attack and suden death.. follow your doctors advise, if in doubt consult other cardiologists to find out the correct line of treatment...but as far as I know, all cardiologists will advise you ECHO, angiogram and possible angioplasty to relieve your symtoms and make sure that you live longer and better.