Key points • Gated SPECT perfusion imaging is useful in differentiating ischemic cardiomyopathy from dilated cardiomyopathy. • Gated SPECT perfusion imaging and RNA are useful in differentiating patients with HF…
Key points • Current guidelines do not recommend routine screening with stress MPI in asymptomatic individuals. Obviously, some exceptions are expected. • Although patients with DM are considered at high…
Key points • The first fundamental assumption of myocardial perfusion SPECT imaging is that the radiotracer is distributed in the myocardium directly proportional to the blood flow at the time…
Key points • Exercise (treadmill or bicycle) is the preferred stress modality in patients who can exercise and achieve adequate exercise endpoints. • Vasodilator stress is reserved for patients who…
Key points • MPI has been extensively studied to examine the effects of interventions or changes using well-validated techniques. • Variations in imaging protocol, tracer dose, processing, and quality could…
Key points • PCI and CABG are commonly used modalities for revascularization in patients with stable and unstable CAD. • Ideally, stress testing (in conjunction with imaging) should be used…
Key points • Stress MPI remains the most common imaging modality used in patients with known or suspected CAD. • The improvement in hardware and software and the availability of…
Key points • Myocardial ischemia can be due to diseases other than coronary atherosclerosis. Examples include endothelial dysfunction, bridging of coronary arteries, coronary artery spasm, LV hypertrophy, and certain types…
Key points • Acute coronary syndrome encompasses a wide spectrum of clinical presentations, including UA, non–ST elevation MI, and ST elevation MI. • Patients with ST elevation MI are preferably…
Key points • RNA is a time-honored method for assessment of LVEF and RVEF. • RNA-derived EF is based on count changes and not on geometric assumptions. • RNA can…
