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Virtual Interactive 3D Modeling to Improve Outcomes in Robot-Assisted Partial Nephrectomy: Clinical Trial Protocol
Sigrun Holze1, Clara Steiner1,2, Anja Dietel1
1Department of Urology, University Hospital Leipzig, Leipzig, Germany.
European Urology Open Science
|June 10, 2025
Summary
This study investigates virtual 3D modeling for robot-assisted partial nephrectomy (RAPN), aiming to improve patient outcomes and surgeon confidence. The research compares 3D model-guided RAPN against standard 2D CT scan guidance in kidney tumor surgery.
Area of Science:
- Urology
- Surgical Technology
- Medical Imaging
Background:
- Robot-assisted partial nephrectomy (RAPN) is a standard procedure for kidney tumors.
- Enhanced visualization may improve surgical precision and patient outcomes.
- Current methods rely on 2D imaging, potentially limiting spatial understanding.
Purpose of the Study:
- To evaluate the clinical value of virtual interactive 3D modeling in RAPN.
- To assess the impact of 3D modeling on patient understanding and surgeon confidence.
- To compare 3D model-based RAPN with standard 2D CT scan-based RAPN.
Main Methods:
- Prospective, multicenter, randomized controlled trial (RCT) of 370 patients.
- 1:1 randomization to either 3D model-based RAPN or 2D CT scan-based RAPN.
- Eligibility criteria include kidney tumors ≤7 cm and contrast-enhanced CT scans.
Main Results:
- The trial is currently recruiting patients.
- Data on clinical outcomes, patient understanding, and surgeon confidence will be collected.
- Results will determine the efficacy of 3D modeling in RAPN.
Conclusions:
- Virtual 3D modeling shows promise for enhancing RAPN procedures.
- Further research is needed to confirm the benefits of 3D modeling in urological surgery.
- This trial will provide crucial evidence on the utility of advanced visualization in kidney tumor surgery.

