Virtual treatment of brain aneurysms

Virtual flow diverter deployment for treatment planning

Problem

Flow diverter planning often relies on virtual deployment methods that capture geometry but not validated device mechanics. This project develops a deployment model that preserves physically meaningful braid behavior.

Approach

  • Build a spring-mass representation of braided flow-diverter devices.
  • Calibrate force response against experimental measurements from real devices.
  • Simulate deployment maneuvers including push-pull effects.
  • Quantify apposition and expansion behavior in patient-specific vessel geometries.

Key finding

The method reproduces key mechanical deployment responses while retaining practical flexibility for treatment scenario exploration.

Why it matters

Mechanically faithful virtual deployment reduces uncertainty in simulated post-treatment hemodynamics and supports safer intervention planning.

Outputs

  • Publication details are listed in the References section below.
  • Deployment and post-treatment flow visuals are included on this page.

References

2020

  1. Hydrodynamic resistance of intracranial flow-diverter stents: measurement description and data evaluation
    Benjamin Csippa, Dániel Gyürki, Gábor Závodszky, and 2 more authors
    Cardiovascular engineering and technology, 2020
  2. A novel virtual flow diverter implantation method with realistic deployment mechanics and validated force response
    Gábor Závodszky, Benjámin Csippa, György Paál, and 1 more author
    International Journal for Numerical Methods in Biomedical Engineering, 2020