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Optical Coherence Tomography What it is and How it Works Slide 2 What is Intravascular OCT? An optical imaging modality that uses near-infrared light for high-resolution imaging of vessel anatomy, tissue microstructure and stents. Key Features: Uses light, not sound Does not use X-ray Image acquisition is fast Images acquired are sharp, detailed and easy to interpret 2 Images: Drs. Grube, Buellesfeld, Guerkens and Mueller, Helios Heart Center, Siegburg, Germany Image: Image: Gonzalo N. Optical Coherence Tomography for the Assessment of Coronary Atherosclerosis and Vessel Response After Stent Implantation (Thesis) 2010 Slide 3 OCT Technology from St. Jude Medical Console Rapid exchange (Rx) imaging catheter Contrast flush; balloon occlusion not required Fast image acquisition: 5 cm pullback in 2.5 sec 3 Slide 4 Image Display Cross-sectional View Longitudinal View 4 Slide 5