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Journal Articles International Journal of Computer Assisted Radiology and Surgery Year : 2011

Automatic computation of electrode trajectories for Deep Brain Stimulation: a hybrid symbolic and numerical approach

Abstract

Purpose The optimal electrode trajectory is needed to assist surgeons in planning Deep Brain Stimulation (DBS). A method for image-based trajectory planning was developed and tested. Methods Rules governing the DBS surgical procedure were defined with geometric constraints. A formal geometric solver using multimodal brain images and a template built from 15 brain MRI scans were used to identify a space of possible solutions and select the optimal one. For validation, a retrospective study of 30 DBS electrode implantations from 18 patients was performed. A trajectory was computed in each case and compared with the trajectories of the electrodes that were actually implanted. Results Computed trajectories had an average difference of 6.45° compared with reference trajectories and achieved a better overall score based on satisfaction of geometric constraints. Trajectories were computed in 2 min for each case. Conclusion A rule-based solver using pre-operative MR brain images can automatically compute relevant and accurate patient-specific DBS electrode trajectories.

Dates and versions

inria-00637291 , version 1 (31-10-2011)

Identifiers

Cite

Caroline Essert, Claire Haegelen, Florent Lalys, Alexandre Abadie, Pierre Jannin. Automatic computation of electrode trajectories for Deep Brain Stimulation: a hybrid symbolic and numerical approach. International Journal of Computer Assisted Radiology and Surgery, 2011, 7 (4), pp.517-532. ⟨10.1007/s11548-011-0651-8⟩. ⟨inria-00637291⟩
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