Instrument localisation for endovascular aneurysm repair: Comparison of two methods based on tracking systems or using imaging

Sonja Jäckle*, Annkristin Lange, Verónica García-Vázquez, Tim Eixmann, Florian Matysiak, Malte Maria Sieren, Marco Horn, Hinnerk Schulz-Hildebrandt, Gereon Hüttmann, Floris Ernst, Stefan Heldmann, Torben Pätz, Tobias Preusser

*Corresponding author for this work

Abstract

Background: In endovascular aneuysm repair (EVAR) procedures, medical instruments are currently navigated with a two-dimensional imaging based guidance requiring X-rays and contrast agent. Methods: Novel approaches for obtaining the three-dimensional instrument positions are introduced. Firstly, a method based on fibre optical shape sensing, one electromagnetic sensor and a preoperative computed tomography (CT) scan is described. Secondly, an approach based on image processing using one 2D fluoroscopic image and a preoperative CT scan is introduced. Results: For the tracking based method, average errors from 1.81 to 3.13 mm and maximum errors from 3.21 to 5.46 mm were measured. For the image-based approach, average errors from 3.07 to 6.02 mm and maximum errors from 8.05 to 15.75 mm were measured. Conclusion: The tracking based method is promising for usage in EVAR procedures. For the image-based approach are applications in smaller vessels more suitable, since its errors increase with the vessel diameter.

Original languageEnglish
Article numbere2327
JournalInternational Journal of Medical Robotics and Computer Assisted Surgery
Volume17
Issue number6
ISSN1478-5951
DOIs
Publication statusPublished - 12.2021

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