Comparative value of Doppler echocardiography and cardiac catheterization in the decision to operate on patients with aortic stenosis

With the use of Doppler echocardiography, severity of valvular stenosis, etiology and type of valve lesions, and left ventricular function can be assessed accurately in patients with aortic stenosis. The purpose of this study was to compare the value of noninvasive clinical and Doppler echocardiogra...

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