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Key Points Functional tests such as stress electrocardiography (ECG), stress echocardiography, and stress nuclear perfusion imaging have limited accuracy for the detection of anatomic coronary artery disease but provide important prognostic information. Normal functional testing, including exercise echocardiography and myocardial…

Introduction Early Doppler echocardiographic indices of left ventricular (LV) diastolic function have studied the mechanics of left atrial (LA) and ventricular filling. These filling indices have been proven to be useful in providing prognostic information in heart failure patients. However,…