Saad Nagi, Linköping University (IMAGE) Linköping University Caption Saad Nagi at Linköping University demonstrates on a colleague how nerves in the arm are visualized with ultrasound. Credit Charlotte Perhammar/LiU Usage Restrictions May be used by media reporting about the research. Please use appropriate credit. License Licensed content 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.