Goodbye, Login. Hello, Heart Scan. (image) University at Buffalo Share Print E-Mail Caption The system uses low-level Doppler radar to measure your heart, and then continually monitors your heart to make sure no one else has stepped in to run your computer. Credit Bob Wilder/University at Buffalo. Usage Restrictions None 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.