1. Intravascular Imaging in Patients with Acute Coronary Syndromes and Unstable Coronary Plaques

    Intravascular Imaging in Patients with Acute Coronary Syndromes and Unstable Coronary Plaques
    The most common cause of acute coronary syndrome (ACS) is vulnerable plaque rupture. Other less common causes are attenuated plaques, erosions, and calcific nodules. We review the current intracoronary imaging techniques—grayscale intravascular ultrasound (IVUS), virtual histology (VH)-IVUS, optical coherence tomography (OCT), and near-infrared spectroscopy (NIRS)—and their ability to identify the causes of ACS and, potentially, improve the outcomes in ACS patients. Grayscale IVUS gives information about vessel and lesion morphology, but it is limited in terms of plaque composition and near-field resolution. VH-IVUS improves on the ability of grayscale IVUS to assess plaque composition, but it does ...
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