How relevant are the tests for measuring cardiovascular functions and blood flow?
The general emphasis in cardiology today is on the anatomy of coronary artery disease; that is, which coronary arteries are involved, and how much narrowing or obstruction there is. Increasingly it is becoming apparent that the amount of narrowing of the coronary arteries is of only minor importance . Such narrowing does not correlate with the patient’s symptoms , the motion of the muscular walls of the heart, the performance of the heart, the blood flow through the coronary arteries, the patient’s prognosis, and the results of coronary artery bypass surgery.
