Related Experiment Video
Updated: Jul 12, 2026
07:34
Testing a Cochlear Implant Electrode Insertion Training System for Optimal Electrode Array Placement in Different Inner Ear Anatomies
Published on: February 6, 2026
[Image-guided minimal-invasive cochlear implantation--experiments on cadavers].
O Majdani1, S H Bartling, M Leinung
1HNO-Klinik der Medizinischen Hochschule Hannover, Hannover. Majdani.Omid@MH-Hannover.de
Laryngo- Rhino- Otologie
|August 24, 2007
Summary
This study shows that high-resolution flat panel-based Volume Computed Tomography (fpVCT) enables accurate, navigation-guided minimally-invasive cochleostomy. This technique achieves high precision for cochlear access, paving the way for new surgical approaches.
Area of Science:
- Neurosurgery
- Otolaryngology
- Medical Imaging
Context:
- Minimally-invasive cochleostomy requires high intraoperative navigation accuracy.
- Flat-panel Volume Computed Tomography (fpVCT) offers potential for improved surgical navigation accuracy.
Purpose:
- To evaluate the feasibility of navigation-guided minimally-invasive cochleostomy using fpVCT.
- To assess the accuracy of fpVCT in guiding cochlear access.
Summary:
- Four human temporal bones were scanned using fpVCT (200 microm voxel size). Preoperative planning defined a safe drilling channel to the scala tympani.
- A navigated drill followed the planned trajectory, with post-drilling fpVCT confirming accuracy (0.1-0.2 mm RMSE).
- Successful, minimally-invasive cochleostomy was achieved in all specimens, with planning and installation times showing potential for reduction.
Impact:
- Demonstrates the feasibility of fpVCT-guided minimally-invasive cochleostomy with high technical accuracy.
- Highlights the potential for fpVCT to enable new surgical therapeutic concepts in cochlear procedures.
- Identifies barriers to clinical translation, including surgical and electrode-related challenges.
