Two-dimensional echocardiography. Viewing the heart in motion.

The accuracy and safety of two-dimensional echocardiography and the reproducibility of findings have led to its current prominence in the physician's diagnostic armamentarium. It has wide clinical applications, excelling in assessment of valvular heart disease, pericardial effusion, and intracavitary masses, such as vegetations and left ventricular clots. In addition, it is useful in differentiating types of cardiomyopathy and in evaluating global left ventricular systolic function. This article highlights the clinical applications of two-dimensional echocardiography, which is easily the most complete anatomic study of the beating heart.