Intravascular Imaging Guidance for Percutaneous Coronary Interventions

Area of Science:

• Cardiovascular Imaging
• Interventional Cardiology
• Medical Device Technology

Background:

• Two-dimensional coronary angiography has limitations in assessing coronary anatomy and stent placement.
• Intravascular imaging (IVI) modalities like intravascular ultrasound (IVUS) and optical coherence tomography (OCT) offer high-resolution insights.
• These insights can improve procedural success and long-term outcomes in percutaneous coronary intervention (PCI).

Purpose of the Study:

• To review the capabilities and clinical applications of IVI in coronary interventions.
• To compare the strengths and weaknesses of IVUS and OCT.
• To discuss the factors influencing IVI adoption and future research directions.

Main Methods:

• Review of current literature on IVI techniques (IVUS and OCT).
• Comparison of imaging characteristics and clinical utility.
• Discussion of guideline recommendations and real-world implementation challenges.

Main Results:

• IVI provides superior anatomical and morphological information compared to angiography, especially in complex lesions.
• IVUS excels in deep penetration and real-time imaging for large vessels and chronic total occlusions.
• OCT offers high resolution for plaque characterization and stent complication detection.

Conclusions:

• IVI plays a crucial role in complex coronary interventions, guiding PCI and assessing stent outcomes.
• Hybrid IVUS-OCT systems may combine complementary strengths.
• Low adoption rates highlight the need for further research into optimal use, cost-effectiveness, and training.