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Simultaneous electromechanical mapping system for determining location of cell injection sites. Voltage map (A) showing normal voltage activity (blue). Mechanical activity map (B) showing absent local shortening (red). The superimposed information indicates hibernating but viable myocardium. Illustration courtesy of Dr. Gary L. Schaer, Division of Cardiology, Rush University Medical Center; and Biologics Delivery Systems Group. Abbreviations: LAO, left anterior oblique projection.
