Abstract
Purpose
Inaccurate placement of external ventricular drains (EVDs) is a common issue in cerebrospinal diversion procedures. The conventional freehand technique results in a high fraction of sub-optimally placed catheters, and the use of image guidance can improve these results. The purpose of this paper is the validation of the use of an average model for guidance of EVD procedures.
Methods
Three neurosurgeons have tested the model-based technique on three normal volunteers, and we have compared the model-based technique to the freehand technique and neuronavigation based on volunteer-specific images.
Results
Our results show that the surgeons perform significantly better when using the model-based technique than when using the freehand technique.
Conclusions
Our results suggest that the use of an average model may improve the accuracy of catheter placements. However, further refinement of the method and testing in a clinical setting is required.
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Acknowledgments
The authors are thankful to Lars Eirik Bø, Sebastien Muller and Vidar Rao for help with the collection of data. This work was funded by the National Competence Centre for Ultrasound and Image Guided Therapy, Trondheim, Norway.
Conflict of interest
None.
Ethical Standards All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008 (5). Informed consent was obtained from all volunteers for being included in the study.
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Reinertsen, I., Jakola, A.S., Selbekk, T. et al. Validation of model-guided placement of external ventricular drains. Int J CARS 9, 777–784 (2014). https://doi.org/10.1007/s11548-013-0971-y
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DOI: https://doi.org/10.1007/s11548-013-0971-y