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Optical Coherence Tomography (OCT) for Cardiac Imaging is an invasive imaging technique that produces high resolution intra-coronary images. Like intravascular ultrasound (IVUS), OCT for cardiac imaging uses the difference in the backscattering of waves to resolve the image. However, unlike IVUS, this method uses infrared light rather than ultrasound to image the vessels.
OCT provides in vivo information on atherosclerotic plaque morphology with near light microscopy resolution. The high resolution of this imaging technique enables detailed evaluation not only of coronary atherosclerotic plaques but also regarding the vascular response to coronary interventional devices, such as new generation coronary stents, providing important information on neointima formation and strut coverage over time in patients, with potentially significant clinical implications. Moreover, compared to conventional intravascular ultrasound coronary imaging, OCT can be used as a guide for coronary intervention with improved resolution.