What is OCT?

Optical Coherence Tomography (OCT) is an advanced, catheter-based imaging technique that
utilizes near-infrared light to generate high-resolution images of the coronary arteries and
stents. It is a valuable tool for diagnosing and managing coronary artery disease (CAD).

How OCT Works

A catheter is inserted into the coronary artery and guided to the area of interest.

Near-infrared light is used to capture detailed cross-sectional images of the artery’s inner layers.

Compared to intravascular ultrasound (IVUS), OCT provides significantly higher resolution,
allowing for precise assessment of arterial health.

What OCT Reveals

OCT enables cardiologists to visualize the microstructure of coronary arteries with exceptional
clarity, including:

Plaque Composition: Differentiates between lipid-rich, calcified, and fibrotic plaques.

Plaque Characteristics: Identifies high-risk, vulnerable plaques prone to rupture.

Stent Apposition and Expansion: Evaluates stent positioning, expansion, and potential
malapposition.

Thrombus Detection: Identifies blood clots within the arterial lumen.

Clinical Applications
Helps pinpoint culprit lesions and assess plaque burden in coronary artery disease.

Percutaneous Coronary Intervention (PCI): Optimizes stent deployment and ensures proper
apposition for improved outcomes.

Research: Advances the understanding of atherosclerosis and acute coronary syndromes by
providing detailed imaging insights.
With its superior imaging capabilities, OCT plays a crucial role in guiding interventional
cardiology procedures, improving patient outcomes, and enhancing our understanding of
coronary artery disease.