I am very puzzled about the reults of my 5 echocardigrams,I have had 5 every year since 2008,Every one says a diffrent problem,For instance on one echo I had MVp with trace leakage,The year after that it showed no sign of MVP but trace leakage and thickening,I wont go on and on about all the reults of all my echos, however, why are findiongs and results diffrent from one reading to another? and how accuarte are echocardigrams?