Abstract #2051

A Novel MR-Safe Delivery System for MR-guided Venous Stenting: First Measurements at 3T in an Iliac Vein Phantom

Lisa Regler¹, Simon Reiss¹, Niklas Verloh², Klaus Düring^3,4, Anna Hoffmann⁴, Pooja Virkar⁴, Wibke Uller², and Michael Bock¹

¹Division of Medical Physics, Dept. of Diagnostic and Interventional Radiology, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany, ²Dept. of Diagnostic and Interventional Radiology, Medical Physics, University Medical Center Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany, ³Alaxo GmbH, Wallgau, Germany, ⁴MaRVis Interventional GmbH, Garmisch-Partenkirchen, Germany

Synopsis

Keywords: MR-Guided Interventions, MR-Guided Interventions

Motivation: To enable a fully MR-guided venous stenting procedure using a dedicated delivery system.

Goal(s): A novel MR-compatible delivery system together with a braided venous stent is tested at 3T in a realistic vein phantom.

Approach: It’s performance is assessed using a real-time imaging protocol for MR-guided stenting procedures at a clinical 3T system. The procedure was repeated using both the novel braided and a commercially available venous stent.

Results: The markers of the delivery system are clearly visible under real-time imaging. The stent was deployed with 2 mm precision and could be repositioned up to three times. 95% phantom wall apposition was achieved.

Impact: With the presented new MR-compatible delivery system MR-guided venous stenting becomes technically possible.

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