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Initial experience of intraoperative three-dimensional navigation for liver resection using real-time virtual
Surgery
|March 1, 2014
Summary
A new real-time virtual sonography navigation system aids liver resection by accurately detecting tumors and guiding surgeons. This innovative technology proved safe and effective in clinical trials for intraoperative tumor identification and resection planning.
Area of Science:
- Medical Imaging
- Surgical Navigation
- Hepatobiliary Surgery
Background:
- Real-time virtual sonography integrates ultrasound probe position with CT/MRI for modality comparison.
- A novel intraoperative navigation system utilizes this technology for liver tumor detection and resection plane guidance.
Purpose of the Study:
- To evaluate the feasibility, safety, and validity of a new intraoperative navigation system for liver resection.
- To assess the system's efficacy in detecting hepatic malignancies and navigating the resection plane.
Main Methods:
- The system was employed intraoperatively in 16 patients with hepatic malignancies (26 tumors).
- It enabled side-by-side comparison of intraoperative ultrasound with CT/MRI and overlaid preoperative simulations.
- Electromagnetic power usage in the operating room was assessed for safety and feasibility.
Main Results:
- The navigation system was used uneventfully in all operations.
- All 26 target tumors were successfully detected by the system.
- Resected specimen weight showed a strong correlation with preoperatively simulated volume (R = 0.995, P < .0001).
Conclusions:
- The intraoperative navigation system demonstrated feasibility and safety.
- The system is a valuable tool for enhancing intraoperative tumor detection and guiding liver resections.
