Abstract Background The non-invasive quantification of the fractional flow reserve (FFRCT) using a more recent version of an artificial intelligence-based software and latest generation CT scanner (384 slices) may show high performance to detect coronary ischemia. Objectives To evaluate the diagnostic performance of FFRCT for the detection of significant coronary artery disease (CAD) in contrast to invasive FFR (iFFR) using previous generation CT scanners (128 and 256- detector rows). Methods Retrospective study with patients referred to coronary artery CT angiography […]

Abstract Background Image quality and radiation dose are optimized with a slow, steady heart rate (HR) when imaging the coronary arteries during cardiac computed tomography angiography (CCTA). The safety, efficacy, and protocol for HR reduction with beta blocker medication is not well described in a pediatric patient population. Objective Provide a safe and efficient metoprolol dose protocol to be used in pediatric outpatients undergoing CCTA. Methods We conducted a retrospective review of all pediatric outpatients who received metoprolol during CCTA. […]

Dear Editor, In the latest issue of the Arquivos Brasileiros de Cardiologia, Costa et al. reviewed the role of cardiovascular imaging and interventional procedures in patients with novel coronavirus infection. […]

Introduction Metastases to the heart and pericardium are much more common than primary cardiac tumors and are generally associated with a poor prognosis. , While they are most commonly asymptomatic, cardiac metastases can mimic primary cardiac diseases such as acute coronary syndromes, congestive heart failure and pericarditis. , Lung cancer is the most frequent source of metastatic cardiac disease, either from direct extension or by a combination of lymphatic, hematogenous, and transvenous dissemination. , […]

Introduction The myocardial bridge is one of the most prevalent congenital anomalies that involve the coronary circulation, and its incidence in the general population is high, affecting from 23 to 55% in necropsy studies.The impairment of the anterior descending artery is more frequent, on its proximal 2/3.In most patients, the myocardial bridges do not cause symptoms, because in order to have ischemia, there must be an imbalance between supply and consumption of oxygen. The superficial bridges, with small or slender […]