ABSTRACT
Cardiovascular disease has become one of the highest morbidity and mortality disease. The scientific and rational treatments of cardiovascular disease are from the correct diagnosis, so the monitoring of cardiac function and hemodynamic is more significant. Cardiac hemodynamic is closely related to human body health, if blood flow of heart underpowered may cause shock, cardiac failure, myocardial infarction and other major diseases, resulting in breathing di- culties in patients with cardiac failure, and symptoms and physical signs are lack of specificity (Cheng, 2001). Early hemodynamic monitoring can be measured cardiovascular pathological and physiological changes.
