PET and SPECT    Radionuclide imaging in risk assessment after acute coronary syndromes Heart (2004);90 Suppl 5:v16-25 J. E. Udelson and E. J. Flint Myocardial positron emission computed tomographic images obtained with fluorine-18 fluoro-2-deoxyglucose predict the response of idiopathic dilated cardiomyopathy patients to beta-blockers J Am Coll Cardiol (2004);43:224-33 S. Hasegawa, et al. Incremental prognostic power of single-photon emission computed tomographic myocardial perfusion imaging in patients with known or suspected coronary artery disease Am J Cardiol (2005);95:182-8 S. Borges-Neto, et al