Electromechanical Mapping to Evaluate Heart Muscle
Myocardial Ischemia
About this trial
This is an interventional treatment trial for Myocardial Ischemia focused on measuring Electromechanical Mapping, Myocardial Viability, Myocardial Ischemia, Positron Emission Tomography, Magnetic Resonance Imaging
Eligibility Criteria
Male or female patients greater than or equal to 21 years undergoing diagnostic cardiac catheterization. Must not have unstable angina. No significant unprotected left main disease (greater than 50% stenosis). No recent myocardial infarction (less than 4 weeks). Females must not be pregnant or lactating. No chronic atrial fibrillation. No prosthetic heart valves. No significant aortic valve pathology (sclerosis or stenosis) which might prevent retrograde crossing of catheter across the aortic valve. No left ventricular thrombus seen on echo. No severe heart failure (NYHA Class 4). No severe ectopy (greater than 1 every 10 beats) or ventricular tachycardia. No active infections (fever and elevated white cell count). Patients will not be considered for this protocol because of contraindications to MRI scan, as stated below: Pacemaker Implanted defibrillator Cerebral aneurysm clips Swan Ganz catheter with electrodes for a thermistor Cochlear implants Insulin pumps Neural stimulator
Sites / Locations
- National Heart, Lung and Blood Institute (NHLBI)