Optical Coherence Tomography Imaging in Acute Coronary Syndromes

Figure 3

Intracoronary thrombus. Thrombus is defined as a protrusion inside the lumen of the artery with signal attenuation. White thrombus which consists mainly of platelets is identified as signal rich, low-backscattering protrusions in the OCT image, while red thrombus which consists mainly of red blood cells is identified as high-backscattering protrusions inside the lumen of the artery, with signal-free shadowing in the OCT image.