Noninvasive Maps of Electrochemical Potentials (image) American Institute of Physics Share Print E-Mail Caption Doctors can use these noninvasive maps of electrochemical potentials inside a patient's heart to localize the source of an abnormal heart rhythm. Credit Abhejit Rajagopal Usage Restrictions This image may be used only with appropriate credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.