الفهرس 
Myocardial ViabilityOnly 14 pages are availabe for public view
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Abstract
In the setting of coronary artery disease, accounting for approximately two thirds of cases of congestive heart failure, LV dysfunction often is not the result of irreversible scar, but rather caused by impairement in function and energy use of ”still-viable” myocytes, with the opportunity for improved function if coronary blood flow is restored. Also patients with LV dysfunction who have viable myocardium are the patients at highest risk (because of the potential for ischemia), but at the same time, they benefit the most from revascularization .It is therefore important to identify viable myocardium in these patients
The purpose of this study is to quantify viability in asynergic myocardium by measuring the myocardial velocity gradient (MVG), and the incremental response to low dose dobutamine in patients who sustained anterior wall myocardial infarction.
The study included 30 patients with 3-weeks duration myocardial infarction, who were submitted to conventional echocardiography and tissue Doppler for measurement of MVG. Technitium 99m was the goldstandard test for detection of viability.