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Updated: Jul 14, 2026
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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Navigated control in functional endoscopic sinus surgery
G Strauss1, K Koulechov, R Richter
1Department of Otorhinolaryngology/Plastic Surgery, University of Leipzig, Germany. gero.strauss@medizin.uni-leipzig.de
Summary
This study introduces a mechatronic system for ENT surgery, enhancing safety by automatically controlling a navigation-assisted shaver based on pre-planned surgical spaces derived from CT scans.
Area of Science:
- Medical Mechatronics
- Surgical Robotics
- Otorhinolaryngology
Background:
- Current ENT surgery, particularly paranasal sinus procedures, can benefit from enhanced precision and safety.
- Computer-Assisted Surgery (CAS) solutions offer potential but may not fully integrate with surgical tools.
Purpose of the Study:
- To design and evaluate a mechatronic system for ENT surgery assistance.
- To develop an automated shaver control system integrated with preoperative surgical planning.
Main Methods:
- A mechatronic system was designed to regulate a navigation-controlled shaver's operation.
- Preoperative 3D surgical workspaces were planned using patient CT data.
- Shaver tip position was monitored, automatically interrupting operation if it exited the defined workspace.
Main Results:
- The planning software was evaluated on 32 patient CT datasets.
- Shaver registration accuracy averaged 1.08 mm.
- Preoperative working space implementation showed a mean deviation of 3.1 mm.
Conclusions:
- The study demonstrates the feasibility of a mechatronic assistance system for ENT surgery.
- This approach enhances surgeon redundancy and reduces cognitive load compared to isolated CAS.
- The principle can be applied to other powered surgical tools like scalpels and lasers.
