Role of non-invasive imaging in the work-up of cardiomyopathies.

Cardiomyopathy is an intrinsic structural disorder of the myocardium that may result in ventricular dysfunction and can progress to clinical heart failure. Non-invasive imaging modalities can determine whether abnormalities are present in the myocardium, valves, pericardium, or vessels. These imaging techniques can also present important prognostic information, as well as direct treatment and further management. Echocardiography is the most common imaging technique used for the initial diagnosis and management of cardiomyopathy; however, other imaging modalities, including nuclear cardiac imaging, cardiac magnetic resonance imaging, and cardiac computed tomography, may play an important role depending on the underlying etiology of the cardiomyopathy. This article reviews the role of non-invasive imaging in the work-up and management of patients with cardiomyopathy.