Clinical Research Directory

Inclusion Criteria: Clinically indicated exams 1. Patients who are undergoing a medically indicated MRI scan or cardiac catheterization procedure 2. Patients who are medically judged to have no contraindications to MRI scan 3. Age inclusion: infant to adult 4. Written informed consent and assent, when applicable Volunteers 1. Written informed consent from any normal volunteer 8 years of age or older for a noncontrast, nonsedated cardiac MRI 2. Normal adult volunteer to undergo cardiac MRI with contrast agent Fetal exams 1. Age inclusion:18 years and older 2. Second or third trimester (greater than 13 weeks) Exclusion Criteria: 1. All patients who are medically judged to have contraindication(s) to MRI scanning will be excluded. Contraindications include implanted metal devices which are contraindicated for MRI scanning: * Central nervous system aneurysm clips; * Implanted neural stimulator; * Implanted cardiac pacemaker or defibrillator; * Cochlear implant; * Ocular foreign body (e.g. metal shavings); * Implanted Insulin pump; * Metal shrapnel or bullet. 2. Exclusion criteria for Bicycle Stress MRI * Myocardial infarction within 24 hours * Active myocarditis * Uncontrolled heart failure * Severe left ventricular outflow tract obstruction 3. Exclusion Criteria for adult volunteers undergoing MRI with administration of contrast agent: * 60 years of age or older * Renal Disease; Glomerular Filtration rate (eGFR \< 30 ml/min/1.73 m2) will be determined by a simple blood test done at the bedside * Use of diuretics * Diagnosis of hypertension and diabetes 4. Exclusion criteria for volunteers undergoing both contrast and non-contrast MRI scans: * Pregnant women: 1. Women of childbearing potential will be required to have a screening urine pregnancy test 5. Exclusion criteria for * Pregnant woman for whom 15 additional minutes lying flat in the MR scanner would represent a risk (i.e. severe claustrophobia, congestive heart failure) * Pregnant minor under the age of 18 * Less than 13 weeks gestation