Evaluación de la Microcirculación: rol del SPECT y de la Tomografía por Emisión de Positrones / Evaluation of coronary microcirculation: Role of Spect and positron emission tomography

ABSTRACT

This investigation was designed to evaluate the coronary microcirculation and the role of single-photon emission computed tomography (SPECT) and positron emission tomografhy, for the detection of coronary artery stenosis and the evaluation of the physiological significance. Nuclear cardiology allows a not invasive manner of evaluation of the complete spectrum of the severity of the coronary artery disease (CAD). The study of the coronary microcirculation through the evaluation of the endothelial function and the coronary flow reserve permits the early detection of patients at risk for CAD. The evaluation of the coronary flow reserve associated to myocardial perfusion could have a potential role in patients with obstructive CAD, because is detects with higher precision the presence of CAD