Related Experiment Video
Updated: Aug 28, 2026

Experimental Investigation of Secondary Flow Structures Downstream of a Model Type IV Stent Failure in a 180° Curved Artery Test Section
Published on: July 19, 2016
[Simulation of a coronary vascular complication in transluminal coronary angioplasty by reversible intima folding]
Insights
During coronary angioplasty, a falsely suspected thrombosis or dissection was observed. This complication was actually intimal folding caused by balloon catheter insertion, resolving after removal.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Imaging
Background:
- Coronary angioplasty is a common procedure to treat blocked arteries.
- Complications like thrombosis or dissection can occur during angioplasty.
- Accurate diagnosis of complications is crucial for patient outcomes.
Observation:
- Contrast injection into the right coronary artery showed inhomogeneous filling.
- This inhomogeneous filling was initially suspicious of thrombosis or dissection.
- A Harzler dilatation catheter was in place during the observation.
Findings:
- After angioplasty and balloon catheter removal, the artery showed homogeneous filling.
- The initial inhomogeneous filling was attributed to intimal folding.
- Flow obstruction was caused by the inserted balloon catheter, not a true complication.
Implications:
- This finding highlights the importance of differentiating artifact from true complications.
- Understanding intimal folding can prevent unnecessary interventions.
- Improved diagnostic criteria for angioplasty complications are needed.
Abstract:
The injection of contrast material into the right coronary artery via a guiding catheter while a Harzler dilatation catheter had already been introduced revealed an inhomogeneous filling of the vessel suspicious of an extensive thrombosis or a dissection. On completion of the angioplasty and removal of the balloon catheter, the artery again filled homogeneously showing a good angioplasty result. It is concluded that a complication had only been faked during angioplasty due to intimal folding and subsequent flow obstruction following the insertion of the balloon catheter.
More Related Videos
13:07Optical Coherence Tomography Based Biomechanical Fluid-Structure Interaction Analysis of Coronary Atherosclerosis Progression
Published on: January 15, 2022
06:18Intravascular Ultrasound Image-Based Finite Element Modeling Approach for Quantifying In Vivo Mechanical Properties of Human Coronary Artery
Published on: December 6, 2024