1. Optical coherence tomography or intravascular ultrasound to optimize coronary stent implantation

    Optical coherence tomography or intravascular ultrasound to optimize coronary stent implantation

    Optical coherence tomography (OCT) provides high-resolution tomographic images of the coronary arteries. 1 , 2 Spatial resolution of OCT (∼15 μm) is 10 times better than that of intravascular ultrasound (IVUS) (∼150 μm). 1 , 2 However, OCT needs complete blood clearance from the coronary lumen and, therefore, requires the use of contrast media. 1 , 2 OCT is unable to penetrate and see throughout red thrombus (that casts major dorsal shadowing) whereas IVUS is unable to see through heavily calcified plaques. IVUS has a deeper penetration on the vessel wall and, therefore, is better suited to detect...

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