Utility of optical coherence tomography and intravascular ultrasound for the evaluation of coronary lesions |
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Authors: | Agustín Girassolli Sebastián Carrizo Santiago Jiménez-Valero Angel Sánchez Recalde Juan Ruiz García Guillermo Galeotte Raúl Moreno |
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Institution: | 1. Hospital Juan A. Fernández, Cardiology Service, Buenos Aires, Argentina;2. Hospital Universitario La Paz, Interventional Cardiology Unit, Madrid, Spain |
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Abstract: | Optical coherence tomography (OCT) and intravascular ultrasound (IVUS) are imaging methods used in the diagnosis of coronary lesions. IVUS is widely used in interventional cardiology laboratories, but OCT is now increasingly used. Conventional coronary angiography can identify different types of coronary lesions but sometimes is unable to diagnose them correctly. Both intravascular imaging methods are useful for better interpretation of these lesions, and can accurately diagnose ruptured plaques, thrombosis, stent restenosis and hazy images. However, the resolution of OCT is ten times higher than IVUS, and so an accurate diagnosis cannot always be achieved with ultrasound imaging. We present three cases in which IVUS was unable to identify the lesion causing the condition and OCT was required to obtain clearer images that helped to confirm the diagnosis. The advantages and disadvantages of each method are then discussed. |
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Keywords: | Optical coherence tomography Intravascular ultrasound Coronary restenosis Coronary calcification Coronary thrombosis Tomografia de coerência ótica Ultrasonografia intravascular Reestenose coronária Calcificação coronária Trombose coronária |
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