Comparison of mechanical properties of the left ventricle in patients with severe coronary artery disease by nonfluoroscopic mapping versus two-dimensional echocardiograms.
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In 40 patients, we compared linear local shortening assessed with nonfluoroscopic electromechanical mapping as a function of regional wall motion with echocardiographic data in a subset of patients with severe coronary artery disease and subsequently decreased left ventricular function. Our study showed that nonfluoroscopic electromechanical mapping can accurately assess regional wall motion. In addition, this study showed a significant decrease in unipolar voltages among segments with declining regional function.
- Sensitivity and Specificity
- Analysis of Variance
- Reference Values
- Severity of Illness Index
- *Body Surface Potential Mapping
- Coronary Disease/*complications/diagnosis
- Heart Catheterization/instrumentation/methods
- Ventricular Dysfunction, Left/*diagnosis/etiology