P165/237 Development and Validation of a novel stenosis model for percutaneous transluminal angioplasty training

Introduction

The continuously expanding field of neurointervention with its increasing demand in endovascular therapy of ischemic stroke urges for the establishment of standardized procedural training environments. Studies have already shown the positive impact of simulator-based training for neurointerventional procedures. Stent-protected percutaneous angioplasty of the ICA is often performed in the acute setting and thus, simulation training is indispensable. Aim of Study: In this context we aim to analyze the feasibility of a custom-made stenosis model of the internal carotid artery by means of percutaneous transluminal angioplasty.

Methods

Internally developed 3D-printed circular clamps were attached to patient-based 3D printed ICA models and integrated in a previously described realistic whole-body neurovascular simulation model. Participants (N=5) with different levels of experience performed PTA (N=15). Fluoroscopy time, radiation doses,extent of stenosis and balloon inflation pressure were assessed. After simulation, participants rated qualitatively the model in terms of haptic, feasibility and applicability of the model.

Results

Participants declared an overall agreement concerning the beneficial use of the simulation model. A median stenosis degree of 83% could be achieved. Lumen could be normalised using ballon angioplasty in all cases. Balloon inflation pressure was in most cases comparable to in-vivo procedure (median 13 kPA). No significant difference was seen in fluoroscopy time and radiation dose among participants.

Conclusion

The authors propose a novel ICA stenosis simulation model for training of PTA. The model provides a realistic and replicable method for standardized procedural training.

Disclosure of Interest

Nothing to disclose