Conventional radionuclide cardiac imaging.

For more than two decades, conventional radionuclide techniques have been employed for the noninvasive evaluation of cardiac function. Standardized techniques have been developed and are widely available. Extensive clinical experience has confirmed the reliability of these techniques and has established important roles in providing diagnostic and prognostic information. Conventional radionuclide cardiac imaging currently emphasizes the demonstration of abnormalities in myocardial perfusion and ventricular function. Myocardial and radionuclide studies are infrequently employed but can offer helpful information in specific clinical situations.