Seeing the Unseen: Enhanced Stent Visualization Reveals Hidden Coronary Stent Complications

Area of Science:

• Cardiology
• Medical Imaging
• Interventional Cardiology

Background:

• Accurate stent evaluation post-percutaneous coronary intervention (PCI) is crucial for reducing adverse events.
• Conventional coronary angiography has limitations in detecting subtle stent mechanical abnormalities.
• Enhanced stent visualization (ESV) is an advanced X-ray technique for improved stent strut delineation.

Purpose of the Study:

• To assess the utility of ESV as an adjunctive imaging modality in complex PCI.
• To evaluate ESV's ability to detect mechanical complications missed by conventional angiography.
• To determine the impact of ESV on intraprocedural decision-making and outcomes.

Main Methods:

• Retrospective case series of five patients undergoing complex PCI.
• ESV utilized as an adjunctive imaging technique.
• Assessment of ESV's capability to identify mechanical stent complications and its influence on management.

Main Results:

• ESV successfully identified mechanical complications in all cases, including stent fracture, loss, dislodgement, underexpansion, and geographical miss.
• These complications were not clearly visible with conventional angiography alone.
• ESV directly guided immediate corrective actions, optimizing stent deployment and procedural outcomes.

Conclusions:

• ESV offers incremental diagnostic value over conventional angiography in complex PCI.
• The technique effectively detects unrecognized mechanical complications and aids in real-time procedural optimization.
• Larger prospective studies are needed to validate the clinical impact of ESV.