Related Experiment Video
Updated: May 12, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Optical Coherence Tomography Versus Angiography Alone to Guide PCI for Complex Lesions: A Meta-Analysis of Randomized
Chidubem Ezenna1, Mrinal Murali Krishna2, Meghna Joseph2
1Department of Medicine, University of Massachusetts - Baystate Medical Center, Springfield (C.E.).
Optical coherence tomography (OCT) significantly improves clinical outcomes for complex percutaneous coronary intervention (PCI) compared to angiography alone. OCT guidance reduces major adverse cardiovascular events, cardiac death, and stent thrombosis, supporting its use in complex PCI.
Area of Science:
- Cardiovascular Imaging
- Interventional Cardiology
- Medical Technology Assessment
Background:
- Optical coherence tomography (OCT) offers high-resolution intracoronary imaging.
- The benefit of adding OCT to angiography for guiding percutaneous coronary intervention (PCI) in complex lesions remains debated.
Purpose of the Study:
- To evaluate the impact of OCT-guided PCI versus angiography-guided PCI on clinical outcomes in complex coronary lesions.
Main Methods:
- A systematic review and meta-analysis of randomized controlled trials (RCTs) was performed using PubMed, Scopus, and Cochrane databases.
- Key endpoints included major adverse cardiovascular events, cardiac death, myocardial infarction, and stent thrombosis.
- Risk ratios (RRs) and 95% confidence intervals (CIs) were calculated using a random-effects model.
Main Results:
- Four RCTs involving 5603 patients with a median 2-year follow-up were analyzed.
- OCT-guided PCI significantly reduced major adverse cardiovascular events (RR, 0.68), cardiac death (RR, 0.43), myocardial infarction (RR, 0.75), all-cause mortality (RR, 0.58), and stent thrombosis (RR, 0.49) compared to angiography alone.
- Trends towards reduced target-vessel revascularization and periprocedural myocardial infarction were observed with OCT guidance.
Conclusions:
- OCT guidance in PCI for complex lesions leads to superior clinical outcomes compared to angiography guidance.
- Guidelines should be updated to recommend OCT guidance for complex PCI procedures.
More Related Videos
13:07Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
07:18Evaluation of Capillary and Other Vessel Contribution to Macular Perfusion Density Measured with Optical Coherence Tomography Angiography
Published on: February 18, 2022
Related Concept Videos
Imaging Studies for Cardiovascular System V: CT
Imaging Studies for Cardiovascular System VI: Calcium -Scoring CT
Acute Coronary Syndrome III: Diagnostic Studies
Atherosclerosis III: Management
Aneurysm II: Clinical Manifestations and Diagnostic Studies
Imaging Studies VII: Vascular Imaging