Prototype Near-Infrared Ablation Catheter (IMAGE) Optica Caption A new ablation catheter incorporating near-infrared spectroscopy mapping can successfully distinguish various tissue types in hearts. This distinction is critical when using radiofrequency ablation to treat heart rhythm problems. Credit Christine P. Hendon, Columbia University. Photographer: John Abbott 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.