Infrared Spectroscopy Maps (VIDEO) Optica This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption Researchers showed that a new mapping approach based on near infrared spectroscopy can distinguish various types of tissue in the heart. The movie shows the sampling sites as well as 3D renderings of the adipose contrast index (ACI) and lesion optical index (LOI1). Credit Christine P. Hendon, Columbia University Usage Restrictions None 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.