title: Utility of optical coherence tomography and intravascular ultrasound for the evaluation of coronary lesions.
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.
authors.affiliation: Hospital Juan A. Fernández, Cardiology Service, Buenos Aires, Argentina; Hospital Universitario La Paz, Interventional Cardiology Unit, Madrid, Spain. Electronic address: girassolliagustin@hotmail.com.
authors.forename: Agustín
authors.initials: A
authors.lastname: Girassolli
authors.forename: Sebastián
authors.initials: S
authors.lastname: Carrizo
authors.forename: Santiago
authors.initials: S
authors.lastname: Jiménez-Valero
authors.forename: Angel
authors.initials: A
authors.lastname: Sánchez Recalde
authors.forename: Juan
authors.initials: J
authors.lastname: Ruiz García
authors.forename: Guillermo
authors.initials: G
authors.lastname: Galeotte
authors.forename: Raúl
authors.initials: R
authors.lastname: Moreno
mesh_terms: D000328:Adult; D000369:Aged, 80 and over; D003324:Coronary Artery Disease / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D041623:Tomography, Optical Coherence; D018084:Ultrasonography, Interventional
keywords: Calcificação coronária; Coronary calcification; Coronary restenosis; Coronary thrombosis; Intravascular ultrasound; Optical coherence tomography; Reestenose coronária; Tomografia de coerência ótica; Trombose coronária; Ultrasonografia intravascular