GI Tracking Sensor (IMAGE) Massachusetts Institute of Technology Caption This ingestible sensor whose location can be monitored as it moves through the digestive tract, is an advance that could help doctors more easily diagnose gastrointestinal motility disorders such as gastroesophageal reflux disease and gastroparesis. Credit MIT Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.