OBJECTIVES We tested whether an assessment of myocardial scarring by cardiac magnetic resonance imaging (MRI) would improve risk stratification in patients evaluated for implantable cardioverter-defibrillator (ICD) implantation. BACKGROUND Current sudden cardiac death risk stratification emphasizes left ventricular ejection fraction (LVEF); however, most… (More)
BACKGROUND Unrecognized myocardial infarction (UMI) is known to constitute a substantial portion of potentially lethal coronary heart disease. However, the diagnosis of UMI is based on the appearance of incidental Q-waves on 12-lead electrocardiography. Thus, the syndrome of non-Q-wave UMI has not been investigated. Delayed-enhancement cardiovascular… (More)
RATIONALE After acute myocardial infarction (MI), delineating the area-at-risk (AAR) is crucial for measuring how much, if any, ischemic myocardium has been salvaged. T2-weighted MRI is promoted as an excellent method to delineate the AAR. However, the evidence supporting the validity of this method to measure the AAR is indirect, and it has never been… (More)
Objective To evaluate a new long-T1 artifact suppression method and compare its effectiveness with previously reported techniques.
Objective To assess the prevalence of microvascular obstruction (MO) by delayed-enhancement cardiac magnetic resonance (DE-CMR) in patients with first acute myocardial infarction (AMI) and describe its relationship with type of infarction, infarct size (IS), transmurality, and infarct age.
Objective To compare two B1-insensitive T2-preparations to existing techniques regarding cardiac motion and flow robustness.