Can test for aorta, all four chambers and valves. Sometimes shows up as a diamond shaped lesion but doesn't have to be diamond shaped. Venous congestion and poor circulation may also be an indication of a weakened heart. Left foot only just before the ball of the foot down from the toe next to the pinky. Exercise, proper diet and releasing stress.
Salt hardens the arterial wall.
Cholesterol imbalances or excesses corrode the inside of the arterial wall restricting blood flow. High Blood Pressure in time can weaken and enlarge the heart and weaken the arterial wall. Tobacco causes the small and large blood vessels to constrict which adds stress to the heart. Not enough oxygen from the lungs deprives all tissue including the heart. Being overweight puts more demands on the heart.