Optical Coherence Tomography (OCT)

Optical Coherence Tomography (OCT) is indeed an invasive imaging technique. Intravascular optical coherence tomography (IV-OCT) is utilized to visualize and obtain high-resolution three-dimensional images of coronary arteries. It provides detailed information about the structure of the blood vessels, including the vessel walls, plaques, and potential pathological features.

IV-OCT works on the principle of light coherence. It employs near-infrared light waves (usually around 1,300 nm wavelength) that are projected around the imaged structure, such as a coronary artery. The light waves interact with the tissue, and the backscattered signals are detected and used to create cross-sectional images of the vessel. These images offer exceptional resolution and enable cardiologists to assess the vessels condition with great precision.

By using IV-OCT, cardiologists can better evaluate coronary arteries and diagnose conditions like atherosclerosis, plaque buildup, and other abnormalities. It provides valuable information for guiding percutaneous coronary interventions (such as stent placements) and assessing their success.