Electromagnetic Tracking for Registration and Navigation in Endovascular Aneurysm Repair: A Phantom Study.

Albéric De Lambert 1, * Simon Esneault 2 Antoine Lucas 3 Pascal Haigron 3 Philippe Cinquin 4 Jean-Luc Magne 1
* Auteur correspondant
TIMC-IMAG - Techniques de l'Ingénierie Médicale et de la Complexité - Informatique, Mathématiques et Applications [Grenoble]
Abstract : OBJECTIVE: To assess the feasibility of using an electromagnetic tracking for both registration and navigation in endovascular aneurysm repair. MATERIALS AND METHODS: A registration process was implemented to align computed tomography (CT) data and electromagnetic tracking data. Two abdominal aortic aneurysm (AAA) phantoms were used, a rigid plastic AAA model (phantom A) and a soft silicon AAA model (phantom B). A pre-procedural CT volume was acquired for each phantom. Intra-operative simulation was performed by placing each phantom in the magnetic field of the tracking device. Using a modified electromagnetic catheter, a set of three-dimensional positions was acquired in the phantom's aortic lumen. Pre-procedural CT images and intra-procedural tracked positions were registered. Four reference points were used to calculate the registration accuracy of phantom A. Three surgeons simulated catheterisation of the left renal artery with phantom B using only image-guided procedure software. RESULTS: The mean registration error was 1.3 mm (range 0.88-1.89). The median time for left renal catheterisation was 22 s (range 15-59). CONCLUSION: Registration of CT data and electromagnetic tracking data is feasible using catheter positions in the aorto-iliac structure as landmark. This navigation system could reduce X-ray exposure time and the use of contrast medium injections.
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Contributeur : Lotfi Senhadji <>
Soumis le : mardi 22 mai 2012 - 18:05:09
Dernière modification le : mercredi 16 mai 2018 - 11:23:40

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Albéric De Lambert, Simon Esneault, Antoine Lucas, Pascal Haigron, Philippe Cinquin, et al.. Electromagnetic Tracking for Registration and Navigation in Endovascular Aneurysm Repair: A Phantom Study.. European Journal of Vascular and Endovascular Surgery, Elsevier, 2012, 43 (6), pp.684-689. 〈10.1016/j.ejvs.2012.03.007〉. 〈inserm-00696585〉



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