Cardiac positron emission tomography imaging.

摘要: Cardiac positron emission tomography (PET) imaging has advanced from primarily a research tool to practical, high-performance clinical modality. The widespread availability of state-of-the-art PET gamma cameras, the commercial perfusion and viability tracers, reimbursement for procedures by government private health insurance plans, computer software image display perfusion, wall motion, images have all been key cardiac becoming routine tool. Although myocardial is an option patients requiring stress imaging, there are identifiable patient groups difficult with conventional single-photon computed that particularly likely benefit such as obese patients, women, previous nondiagnostic tests, poor left ventricular function attributable coronary artery disease considered revascularization. Myocardial rubidium-82 noteworthy high efficiency, rapid throughput, in high-volume setting, low operational costs. metabolic continues be noninvasive standard diagnosis imaging. shown cost-effective. potential quantification resting blood flow reserve response pharmacologic cold-pressor offers tantalizing possibilities enhancing power This can achieved providing assurance quality control, risk stratification disease, expanding diagnostic into realm detection early endothelial dysfunction subject factor modification. Combined x-ray (PET-CT) results enhanced throughput efficiency. combination multislice scanners opens adding calcium scoring angiography quantification. Evaluation role these creative new warrants investigation.